Tender For supply of bhel tm gear case nl- 30mm washer in pair's, with non permanent glue spring ste el c-80/ck-75/50 - crv4/51crv4 matterial, hardness- 465 hv (rev-05), zink flake coating, size id- 31.4mm (+/-0.4mm), od-47mm (+/-0.5mm), thick- 5.8mm (0.35 mm) with nabl test report. make= no rd lock, dur-lok, international industrial sprin (lock-right) only. [ warranty period: 30 mont hs after the date of delivery ]