| GENERAL CHARACTERISTICS ITEM DESCRIPTION | STEEL,QQ-S-700: 1065; ASTM A684: 1085 OR 1095,SOFT TYPE ANNEALED; OR ASTM A322 OR A331,4130; 2.655 IN. LG.; 0.760 IN. W.; 0.101 IN. THK.; HEAT TREATMENT: FOR 1065,1085,AND 1095 STEEL,HEAT AT 1500-1550 DEG. F.,FOR 4130 STEEL,HEAT AT 1550-1600 DEG. F.,OIL QUENCH,TEMPER 1 HR. MIN. TO ROCKWELL A74-78; MANGANESE PHOSPHATE,TYPE M,OR ZINC PHOSPHATE,TYPE Z,PER MIL-P-16232,CLASS 1 |