supply of washer, punched washer a 18 as drg. no. is:2016-1967, material steel to is:2062, coating as per mdts- 057, as per drg.no. punched washer a 18 specn: punched washer a 18 [ warranty period: 30 months after the date of delivery ] , spring washer b12, coating as per mdts 057 as per is:3063-1994 grade 60c6 per is:3063-1994 grade 60c6 specn: as per mdts 057 as per is:3063-1994 grade 60c6 [ warranty period: 30 months after the date of delivery ] , washer steel spring flat 20 mm is:3063 / 1994 amdt.no.1 ( reaffirmed 2021 ) . [ warranty period: 30 months after the date of delivery ] , spring washer m16b is 3063 / 1972 [ warranty period: 30 months after the date of delivery ] , stainless steel spring washer size b16 to specification is:3063-1994 ( reaffirmed 2004 ) 2nd revision, mat to aisi-304 [ warranty period: 30 months after the date of delivery ] page 1 of 4 run date / time: 08 / 12 / 2023 08:25:04stores / east central rly tender document , spring washer m-20 to is:3063 / 1994, amdt.no.-1 ( reaffirmed 2021 ) [ warranty period: 30 months after the date of delivery ] , spring washer m12 to icf drg.no. t-0-7-607, alt.-l / 17 ( small l ) , item-9 and is:3063 / 1994 with amndt. no.1 ( reaffirmed 2021 ) , table -i a, type - b, phosphate coated [ warranty period: 30 months after the date of delivery ] , punched washer a-22 to is:2016 / 1967 tab.2 [ warranty period: 30 months after the date of delivery ]