Latest clamping ring Tenders | Government clamping ring Tenders

Central Government/Public Sector

CTN :40538250

02 Jun, 2025 NA

Hubli - Karnataka

Tender For set of hardware items: 1) bronze handles 4 inch = 15 nos 2) bronze tower bolts 4 inch =10 n os 3) bronze handles 5 inch = 05 nos 4) butterfly 3-way coat hooks = 08 nos 5) 1 inch inner lock = 02 nos 6) magnets 2 inch = 07 nos 7) slam lock with key assembly = 02 sets 8) concealed handles 6 inch = 04 no s 9) runner & guide 'c' type = 2 sets (size approx.5 inch ) 10) s.s hook & eye 5 inch hd - 04 nos 11) keyle ss lavatory door lock with handle = 02 sets 12) foldable brackets 18 inch = 03 nos 13) foldable brackets 1 2 inch = 02 nos sample to be approved by the consignee before bulk supply. [ warranty period: 30 mont hs after the date of delivery ]

Central Government And Public Sector

CTN :40540312

21 Jun, 2025 NA

Surat - Gujarat

Tender For supply of supply of complete edward double stage rotary vane vacuum pump along with motor. model e2m40t4 220-240v or 380-415v 50hz 3phase atex version part no-a36418993 hsn no-84141000 , supply of clean and overhaul kit em40 hc by f part no-a34401131 for edward vacuum pump model e2m40. atex , supply of spare kit blade e2m40 part no-a36401050 for edward vacuum pump model e2m40. atex , supply of edward inlet catch pot model ito100 iso40 inlet and iso40 outlet part no-a44102000 for edward vacuum pump model e2m40. atex , supply of oil mist filters model mf100 filter nw25 inlet and 1 inch bsp outlet. part no. a46203000 for edward vacuum pump model e2m40. atex , supply of spare kit mf100. part no. a46203800, for edward vacuum pump model e2m40. , supply of edward clean application oil return kit for e1m40 to e2m80 part no.a50004000, for edward vacuum pump model e2m40. atex , supply of nw40 clamping ring ss part no-c10516401 for edward vacuum pump model e2m40. atex , supply of nw40 by 40 centering viton s by s pk1 part no-c10516395 for edward vacuum pump model e2m40. atex , supply of nw40 by 40 centering ring with screen viton ss pk1 part no-c10516085 for edward vaccum pump model e2m40 atex , supply of edwards nw25 c clamp part no- c11004340 for edward vacuum pump model e2m40. atex , supply of nw25 centering ring part no-c10514395 for edward vacuum pump model e2m40. atex , supply of edwards iso40 co seal part no- b27158458 for edward vacuum pump model e2m40. atex , supply of edward atex elastic insert part no. a21071137 for e2m40 atex vacuum pump bid number/ & ( * ) : gem/2025/b/6202878 dated/ + : 30-05-2025 bid document/ 2 2 1 / 25

CTN :40291039

04 Jun, 2025 NA

Delhi - Delhi

Tender For corrigendum : procurement of jcb spares ap demand - 320 a7291 333 y6130 water separator assembly 3dx super ch xxx a , 450 00202 drive flange 3dx super ch xxiii d , 334 y6169 hose 10 bsp hp 850 hyd pump to steer va 3dx super ch iv a , 4102 2800 sealant yellow sikaflex 221 30ml 3dx super ch iii h , 126 01153 lever parking brake 1 , 336 y2341 chart lubricant 3dx super ch iv a , 730 03601 fire extinguisher 3dx super ch vii e , 336 y2342 decal warning 3dx super ch iv a , 333 y9063 stopper plate 3dx super ch iv b , 333 y0334 liner roof assembly 3dx super ch iv f , 4101 1100 loctite 243 3dx super ch iv f t , 335 y3428 support roof liner 3dx super ch iv f , 335 y9798 pipe cover front 3dx super ch iv w , 335 y9799 pipe cover side left hand 3dx super ch iv w , 335 y9803 cover pipe front 3dx super ch iv w , 335 y9804 cover pipe side right hand 3dx super ch iv w , 332 g6710 clamping ring 3dx super ch iv w , 334 y7743 console front 3dx super ch iv aa , 335 y9811 rear valance 3dx super ch iv ai , 4101 0300 fluid locking 3dx super ch vi h , 225 35203 mount resilient 3dx super ch xii a , 333 y3532 steering column assembly fixed 3dx super ch xii a ch xxx1 aa , 336 y2361 decal dipper 3dx super army 3dx super ch vii a , 336 y2563 jcb decal artwork armay 3dx super ch vii a , 335 y6827 hose st pump 3dx super ch xiii h , 335 y7881 bracket mounting fire extinguisher 3dx super ch vii d , 333c 2389 mount throttle 3dx super ch x a , 335 b2589 hose 6 bsp hp 2020mm 3dx super ch xvii b , 335 e6978 bush cylinder 3dx super ch xvi n , 335 y0614 bracket side panel mounting 3dx super ch xxviii b , 334 y0568 plate anti re circ 3dx super ch xxviii c , 334 y2232 bracket hose guide 3dx super ch xxviii e , 320 08587 bracket idler non ac 3dx super ch xxix b , 128 17521 pivots clam jaw 3dx super ch xxxi a , 811 20008 pin pivot 600mm 23 inch wide jaw 3dx super ch xxxi f , 1089 0005 collar 3dx super ch xxxi f , 400 p9452 pin 44 point 45 44 point 35 x 273 3dx super ch xxxi f , 400 r5051 bush 55 45 3dx super ch xxxi f , 332 y2824 hose 3dx super ch xxxi p , 130 07245 stopper 3dx super ch xxxi t , 334 y0469 manifold ga valve 3dx super ch xxxi aa

CTN :40267979

03 Jun, 2025 NA

Chamoli - Uttarakhand

Tender For corrigendum : supply of cook house dining hall - manufacturing and supplying of structural stores for 05 nos cook house and dining hall , wall panels quad core panels compatible to structure , roofing sheet as per ts , ridge cover as per ts , false ceiling stores as per ts , aluminum sliding window size 1200 x 1200 mm with glass and aluminum fly proof mesh , aluminium framed doors of size 900mm x 2100mm , aluminium framed doors of size 750mm x 2100mm , sunshade of size 1500 mm x 500 mm , aluminum glazed ventilator fix type of size 900 x 450 mm with fly proof mesh , stainless steel kitchen sinks as per ts , storage rack as per ts , vegetable cutting table of size 1500mmx610mm x 900mm as per ts , exhaust fan 450 mm sweep , self screw rivet or l hook for fixing of roof , star screw half inch of isi mark , screw 1 inch of isi mark , nut and bolts 10mm dia 150mm long with washer , nuts and bolts 12mm dia 100mm long with washer , ppr pipe pn 20 sdr 6 3 layer with inner dia 25mm , ppr pipe pn 20 sdr 6 3 layer with inner dia 16mm , ppr tank connector inner dia 25mm , ppr gate valve connector inner dia 25mm , ppr elbow 90 degree plane inner dia 25mm , ppr elbow 90 degree plane inner dia 15mm , ppr tee reducer 15 x 25mm , ppr union inner dia 25mm , ppr wall clamp dia 25mm , ppr wall clamp dia 15mm , ppr socket inner dia 25mm , ppr socket inner dia 15mm , ppr plug dia 25mm , ppr plug dia 16mm , ppr reducer tee 25 x 15mm , ppr tee inner dia 25mm , ppr female threaded elbow inner dia 15mm , ppr female threaded socket dia 15mm , chrome plated cp soap dish , chrome plated cp brass bib cock short body , chrome plated cp brass bib cock long body , chrome plated cp brass stop cock , pvc insulated connection pipe 16mm dia 450mm long , vitreous china wash hand basin , chrome plated cp steel coat hook with two prongs , pvc pipe 110mm , pvc 100mm dia socket tee and elbow , ms brackets for steel sink , stainless steel jali with hole for waste pipe , stainless steel jali without hole , floor trap 3 inch dia , frp water storage tank triple layer 500 ltrs lldpe , mild steel angle iron frame of size 1.2 x 1.2 x 2.8 mtr for tank staging , 20w rechargeable emergency inverter led tube light , ng series aio solar street light 15w , service wire 10 sqmm flat 2 core aluminium connector cable , switch piano flush type 5 amp , socket 5 amp , switch socket combination 5 amp , switch socket combination 15 amp , pvc switch board 8 inch x10 inch isi mark , pvc switch board 6 inch x4 inch isi mark , pvc casing capping 25mm size , pvc casing capping tee bend , pvc casing capping l bend , pvc square box 4 inch x4 inch , elect wire single core 1.5 sqmm , elect wire single core 2.5 sqmm , elect wire single core 4 sqmm , mcb box 8 way , mcb 10 to 32 amp , wire 2 core 6 sqmm copper , insulation tape half inch 25 mtr roll , ei cable earthing wire pvc insulated , ceiling rose 2 to 3 terminals , change over switch 63 amp , gi wire 14 swg , water dispenser with heating and cooling capacity of 20 ltr , steel cupboards of size 6 feet x 3 feet x 19 inch made out of 22 guage ms sheet duly painted as per ts , provision of fire extinguisher 6.0 kgs abc dry powder stored pressure type , lightening conductor made of aluminium tube 1500mm long x 25mm dia with five aluminium prongs , bwr plywood 8 feet x4 feet x12 mm thick isi marked , cement in polythene bags 50 kgs each opc 43 grade , coarse sand confirming to is 383 of 1970 , white cement , crushed stone aggregate 20 mm graded , non skid ceramic tiles 8 to 10mm thick , hard core size of boulder 40 to 63mm , quick setting compound , water proofing compound , tmt steel rod 8 mm dia , binding wire 0.9mm dia , rr stone , connected stores as per final design

Central Government/Public Sector

CTN :40529947

27 Jun, 2025 NA

Kapurthala - Punjab

Tender For supply of swivel coat hook (three pegs), as per drawing: cc64254 alt e, packing instruction : pi013, brown papper wrapping for individual item collectively packed in jute bags, quali ty plan: n.a. [ warranty period: 30 months after the date of delivery ]

State Government

CTN :40284485

05 Jun, 2025 35.00 Lacs

Mumbai - Maharashtra

Tender For corrigendum : supply of paint materials - supply of paint material, 3m 2214 hitack maskig tape 24mm x 30mtr 3m, 3m pro wash tyre rubber shine, 3m brown masking paper 18 450mm x 200 mtr 3m, 3m brown masking paper 36 900mm x 200mtr 3m, 3m all purpose cleaner & degreaser, 3m fast cut compound 1 ltr. pkg, 3m foaming car interor cleaner 500 gm tin, 3m interior dressing 5 ltr pkg, 3m light weight filler w/hardner 3m make (3kg=1 tin), 3m pro wash plastic shine plastic shine for dash board, 3m pro wash tyre shine 5 ltr pkg, 3m under shield under chassis,mudguard, 3m upholstery cleaner 580 gm tin, 3m water paper 1000 sanding paper 3m, 3m water paper 1200 sanding paper 3m, 3m water paper 150 sanding paper 3m, 3m water paper 1500 sanding paper 3m, 3m water paper 180 sanding paper 3m, 3m water paper 2000 sanding paper 3m, 3m water paper 220 sanding paper 3m, 3m water paper 320 sanding paper 3m, 3m water paper 400 sanding paper 3m, 3m water paper 600 sanding paper 3m, 3m water paper 800 sanding paper 3m, chalk & carbo cleaner 3m make (325 gm can), dry guide coat 3m, 3m foam polish pad, 3m glass sealent 3m black primer 10ml, 3m glass sealent cartage 3m, 3m hook it green corp 40 6" disc, 3m hook it green corp 80 6" disc, 3m hook it purple pluse multi hole soft interface pad, hook it sbs backup pad for sbs comp pad & foam pad 3m code no-06865, hook it sbs wool compounding pad-single sided 3m code no-05711, p 120 purple multi hole file sheet large 70 mm x 396mm 3m, p 180 c 734 u purple hook it clean sanding disc 6", p 180 purple multi hole file sheet large 70mm x 396mm, p 320 purple multi hole file sheet large 70mm x 396mm, p 320c 334 u purple hook it clean sanding disc 6" 3m, p 400 334 u purple hook it clean sanding disc 6" 3m, p 400 purple multi hole file sheet large 70mm x 396mm 3m, p 500 c 334u purple hook it clean sanding disc 6" 3m, p 80 purple multi hole file sheet large 70mm x 396mm 3m, p 80e 3m 745 i purple hook it clean sanding disc 6" 3m, paintabel over spary protective sheeting 12" x 400" 3m, paste wax 3m shining cars (297gm=1tin), perfect it foam polish pad glaze 3m (1kg), premium liquid wax 3m (1 ltr), 3m silicon lube wet, weld thru coating 3m (13 oz or 361gm), sikken auto based plus flip controller q 190 flip tone controller, sikken auto based plus flip controller q 195 flip tone controller, sikken auto based plus reducer (thinner) 5 ltr.pkg, sikken auto based plus tonner q 070 transperency enhancer (1 ltr), sikken auto based plus tonner q 065 connector (3.700 ltrs= 1 tin), sikken auto based plus tonner q 120 high strength white (3.700 ltrs= 1 tin), sikken auto based plus tonner q 140 deep black (3.700 ltrs= 1 tin), sikken auto based plus tonner q 160 mixing black (3.700 ltrs= 1 tin), sikken auto based plus tonner q 195 white transparent, sikken auto based plus tonner q 431 light yellow, sikken auto based plus tonner q 437 bright yellow oxide, sikken auto based plus tonner q 452 blue violet transperent, sikken auto based plus tonner q 455 bright maroon transperent, sikken auto based plus tonner q 550 green transperent, sikken auto based plus tonner q 564 dark green transperent, sikken auto based plus tonner q 652 blue green, sikken auto based plus tonner q 954 m pearl bright green coarse, sikken auto based plus tonner q 954 s pearl bright green very coarse, sikken auto based pluse tonner a 110 white (3.700 ltrs= 1 tin), sikken auto based pluse tonner a 160 mixing black (3.700 ltrs= 1tin), sikken auto based pluse tonner a 237 red, sikken auto based plusetonner a 432 light oxide yellow (3.700 ltrs= 1 tin), sikken auto based plusetonner a 450 deep black, sikken auto based plusetonner q 190 white gray transparent, sikken auto based plusetonner q 231 brilliant red, sikken auto based plusetonner q 235 brilliant red orange, sikken auto based plusetonner q 239 red oxide, sikken auto based plusetonner q 348 orange yellow, sikken auto based plusetonner q 436 dark yellow oxide transperent, sikken auto based plusetonner q 671 bl

corporations/Associations/Others

CTN :40522320

13 Jun, 2025 NA

Washim - Maharashtra

Tender For supply of alluminium extenssion ladder , selectable flow nozzle 63mm size , pyro protect rrl delivery hose type b 63mm coupling 15m , breathing air compressor , fire man axe , bolt cutter extra large , corw bar , pick axe wooden handles , rope terelean nylon 30m each , drag hook heavy duty , circular saw metal cutter machine electrical base , chain saw wooden cutter machine petrol base , diamond chain saw concrete cutter machine petrol base , uniform set for fire fighter as per your latter , officer uniform set as per your latter , rain coat best quality , 100 feet long 16mm dia bob rope , fire extinguishers abc 4kg , fire extinguishers co2 4.5 kg , spread with wooden handle , first aid box for 6 person , hydraulic combi tools , hydraulic power pack , hydraulic hand pump , hydraulic jack , blower and exauster , life bouy jacket , life bouy ring with 30m rope , kernmantle rescue rope 30m size 50mm circumference , electric gloves 10000 volt pairs , ba set with spare 04 cylinder with fire engulfment test , afff 6 percent concentration 20 kg jerrycan , mattock with handle , refilling of co2 type fire extinguishers 4.5 kg , refilling of abc type fire extinguisher 4kg , refilling of abc type fire extinguisher 6kg , refilling of breathing apparatus cylinder , refilling of aksa cylinder 300 bar bid number/ & ( * ) : gem/2025/b/6276915 dated/ + : 29-05-2025 bid document/ 2 2 1 / 30

CTN :40506950

18 Jun, 2025 NA

North 24 Paragana - West Bengal

Tender For purchase of spares - counter plate(f5-3-40) , rear valance (plate iv ai) , cover steer column (plate x a) , filter fuel tank (plate iii c) , liner bearing(b4-3-2 by 03) , seal window rh side (plate iv q) , mat rubber (plate viii e) , horn 12v (plate xxiv b) , adaptor elbow (plate xiv d) , pipe brake rightside 80d (plate xxiii c) , base pre cleaner (plate-xxvi b) , adaptor tee (plate xiv b) , pump seal kit (plate xiv b) , pivot block (plate iv u) , gaiter park brake lever (plate iv a) , mounting cab upper blue a post(plate- iv b) , mounting cab upper green b-post(plate-iv-b) , seal fuse box cover (plate iv ae) , pin slew lock (plate vi a) , bracket mounting fire extinguisher (plate vii e) , switch 12 v (plate ix a) , lever loader control assy (plate x b) , lever loader control 3 spoon , spring (plate xi a) , hose top l h by r h hydra (jcb super plate xiii , hose high pressure (plate xiii ab) , setscrew (plate xvi g) , breather (jcb super plate xix f) , bearing(plate-f5-1-20 by 32) , gasket valve block (ctlg 3dx f5-5-10) , brg needle thrust(plate-f5-1-30 by 9) , pipe brake leftside 80d (plate xxiii c) , bearing liner (plate xxxi l) , lever , bottom gear shift , bearing , radio antenna (plate iv f) , guard hose (plate iii d) , hose hybrid rh outer (plate iii f) , hose hybrid lh outer (plate iii f) , speaker (plate iv f) , retainer top (plate iv am) , retainer side (plate iv am) , switch hand break by brake lamp switch open(c1-16-1) , lever excavator control left hand x pattern , loader excavator control right hand x pattern , adapter filtered m oblique m (plate xv d) , setscrew (plate xvi n) , bolt 1 inch unf x 8 inch long torque 607n-m (jcb super pla , plate brake friction (plate xix c) , ring backup (jcb super plate xix d) , seal astics male assy , brake hose 1 by 4 x 580m (plate xxiii c) , fuel line tank to water separator(plate xxx a) , ball bearing , hose hybrid rh inner (plate iii f) , clamping ring (plate iv y) , cover inner fender rh (plate iv z) , bearing trunnion ram pivot (plate vi y) , pin spring 8 mm clevis (plate x b) , adaptor suction (plate xiv b) , combi seal , disc spring , clip hose (plate xxviii b) , valve non return assy (plate xxx a) , pivot pin , mounting cab lower red b-post(plate-iv) , grommet 22.2mm hole dia by 39.7mm 00 , pivot pin , hose wa feed pipe (jcb super plate xiii d) , adaptor , seal(plate-f1-6-10) , ring backup (jcb super plate xix d) , bearing , pin pivot 44.45 by 44.35x184(plate xxxi f) , hose bsp hp 650mm (jcb super plate xiii o) , hose 1 by 4 bsp 1270mm (plate xiii y) , hose lp 2400 mm (plate xxviii d) , reservoir brake (plate xxiii a) , catch side window lockback (jcb 3dx super page-89) , liner brg 70 mmx60mmx62mm long , pivot pin (ispl sl no 501) , filter breather cap(jcb super iii d-2) , switch panel (plate ix a) , retainer hose (plate iii aa) , cover excavator control lever (plate iv y) , bulk head seal (plate iv am) , lock boom (plate vi v) , brake hose 1 by 4x 760m (plate xxiii c) , lock grille (plate iii q) , pin pivot back(item no-621) , spool adapter solenoid (plate xxi c) , shaft selector (plate xxi c) , brg needle roller , bracket (plate xxx a) , hose 1300 mm (plate xxx b) , plate shim , clutch 1.2mm a by r (jcb super plate xx , sensor vacuum 80m bar (plate xxiv b) , pin pivot union(sl-2240) , side cutter(ms sl-21) , side cutter (plate xxxi v) , bracket engine mounting lh (plate iii n) , gas strut , 700m (plate iii b) , pin pivot (plate iii g) , hose 600 mm (plate xiv d) , pivot pin , hose 06 bsp lp 105 (plate iv a) , pin pivot (plate v j) , switch panel (plate ix a) , panel 12v 2 position (plate ix b) , hose(plate-e1-13-1) , gear planet , brake plate coupling , bearing tapper roller(f5-1-20) , bearing tapper roller(f5-1-20) , pipe pre cleaner (plate xxvi a) , hose (plate xxvi a) , harness grid heater (plate xxvii a) , hose water separator (plate xxx a) , pin pivot (plate xxxi b) , piston oil , console front (plate iv aa) , bearing 50.94x55.9x40 long (plate v i) , bearing tapper

Central Government And Public Sector

CTN :38654181

31 May, 2025 3.74 Crore

Delhi - Delhi

Tender For bid to ras supply of working table store room for raxaul jogbani petrapole dbn sabroom attari , medium back chair store room for raxaul jogbani petrapole dbn sabroom attari , split ac store room for raxaul jogbani petrapole dbn sabroom attari , angle rack store room for raxaul jogbani petrapole dbn sabroom attari , working table duty room for raxaul jogbani petrapole dbn sabroom attari , shoe storage unit duty room for raxaul jogbani petrapole dbn sabroom attari , medium back chair duty room for raxaul jogbani petrapole dbn sabroom attari , printer duty room for raxaul jogbani petrapole dbn sabroom attari , metal almirah unit duty room for raxaul jogbani petrapole dbn sabroom attari , 4k led tv duty room for raxaul jogbani petrapole dbn sabroom attari , lcd unit cabinet duty room for raxaul jogbani petrapole dbn sabroom attari , desk flex duty room for raxaul jogbani petrapole dbn sabroom attari , split ac duty room for raxaul jogbani petrapole dbn sabroom attari , coffee table rest room for raxaul jogbani petrapole dbn sabroom attari , recliner chair rest room for raxaul jogbani petrapole dbn sabroom attari , fridge rest room for raxaul jogbani petrapole dbn sabroom attari , dustbin rest room for raxaul jogbani petrapole dbn sabroom attari , storage unit rest room for raxaul jogbani petrapole dbn sabroom attari , purifier rest room for raxaul raxaul jogbani petrapole dbn sabroom attari , split ac rest room for raxaul jogbani petrapole dbn sabroom attari , 4k led tv rest room for raxaul jogbani petrapole dbn sabroom attari , lcd unit cabinet rest room for raxaul jogbani petrapole dbn sabroom attari , working table fire officer for raxaul jogbani petrapole dbn sabroom attari , shoe storage unit fire officer for raxaul jogbani petrapole dbn sabroom attari , high back chair fire officer for raxaul jogbani petrapole dbn sabroom attari , medium back chair fire officer for raxaul jogbani petrapole dbn sabroom attari , printer fire officer for raxaul jogbani petrapole dbn sabroom attari , two seater sofa fire officer for raxaul jogbani petrapole dbn sabroom attari , corner table fire officer for raxaul jogbani petrapole dbn sabroom attari , 4k led tv fire officer for raxaul jogbani petrapole dbn sabroom attari , lcd unit cabinet fire officer for raxaul jogbani petrapole dbn sabroom attari , dustbin fire officer for raxaul jogbani petrapole dbn sabroom attari , dustbin 2 fire officer for raxaul jogbani petrapole dbn sabroom attari , split officer fire officer for raxaul jogbani petrapole dbn sabroom attari , working table 2 fire officer for raxaul jogbani petrapole dbn sabroom attari , medium back chair 2 fire officer for raxaul jogbani petrapole dbn sabroom attari , single box bed fire officer for raxaul jogbani petrapole dbn sabroom attari , side table fire officer for raxaul jogbani petrapole dbn sabroom attari , dressing table fire officer for raxaul jogbani petrapole dbn sabroom attari , mattress fire officer for raxaul jogbani petrapole dbn sabroom attari , pillow with cover fire officer for raxaul jogbani petrapole dbn sabroom attari , floor matt fire officer for raxaul jogbani petrapole dbn sabroom attari , single bed sheet fire officer for raxaul jogbani petrapole dbn sabroom attari , single bed blanket fire officer for raxaul jogbani petrapole dbn sabroom attari , towel fire officer for raxaul jogbani petrapole dbn sabroom attari , hand towel fire officer for raxaul jogbani petrapole dbn sabroom attari , coat hook fire officer for raxaul jogbani petrapole dbn sabroom attari , ss dustbin fire officer for raxaul jogbani petrapole dbn sabroom attari , 4k led tv fire officer rest room for raxaul jogbani petrapole dbn sabroom attari , lcd unit cabinet fire officer rest room for raxaul jogbani petrapole dbn sabroom attari , split ac - 2 fire officer for raxaul jogbani petrapole dbn sabroom attari , metal almirah unit fire officer for raxaul jogbani petrapole dbn sabroom attari , working table single room for raxaul jogbani petrapo