GENERAL CHARACTERISTICS ITEM DESCRIPTION | STEEL ALLOY PER SPEC RR-C-271 TYPE 1,GRADE C,CLASS 1 AND CLASS 4;AND STEEL 1015 TO 1025,ASTM-A576 OR ASTM-A108,0.38 THK;MAJOR PARTS INCLUDE:2-LINK P/N 12315780-3;2-LINK P/N 12315780-1;2-LINK P/N 12315780-4;2PLATE P/N 12315780-2;CHAIN 19.38 IN. LG;CHAIN 18.38 IN. LG;CHAIN APPROX. 21.0 IN LG;ZINC COATED PER QQ-Z-325,TYPE11,CLASS 2 |