2530-01-091-1638 Front Pin Assembly. Specs: Chain, type 2, class 2 weldless, double loop, 10 link, 0.091 wire X 13.940 in. lg, per spec RR-C-271; track weld 2PLACES; hbook, CHAIN-S-MS87006-13 crimped closed one end; weld per MIL-STD-1261, class 2; aplly part no. per MIL-STD-130; protective finish. treat per TT-C-490; type I or type 3; prime per TT-P-664; paint semi-gloss olive drab enamel per TT-E-529; color no. X 24087 per FED-STD-595 14261 GTBD12