Punched Washer (M.S.) : M20. Matl.& Specn : Is: 2016 / 1967 With Amendment 4 / 1982 , Table 2, Type A And Is: 1079 / 2017 (Rev. 7) Gr. Hr1. [ Warranty Period: 30 Months After The Date Of Delivery ] [Quantity Tolerance (+/-): 5 %Age , Item Category : Normal , Total Po Value Variation Permitted: Max 8 Lacs ] ]