Washer to size 8.4 mm to spcn. is: -2016-1967 steel.,plain washer 8 gost 9649-78 and gost 18123-72 to drg. no. gcf tm 62(b) . matl 40 gost 1050-74 (phosphat,washer bmp to drg. no. 700-31-478.,washer flat to drg. no. 700-31-15.,washer to drg. no. 700-31-583. matl as per drg.,washer for t-90 22.65 t 0212 sp, gost 6402-70, matl. secn. is: -4072-1975 c6 st gr 65 cb to drg. no. t-90/3