MRC:
A recording of the physical,functional,and performance characteristics for an item of supply.TEXT
General Description:
Steel, astm a322, 4140; steel, astm a331, 4140; steel, cmpsn ic4140 mil-s- 22141; prealloyed steel powder forgingsper mil-f-45961; 1.719 in.Lg; 0.610 in. W; 0.530 in.H; heat treatment: 152 to 1575 degrees f., quench in circulating oil, temper to hardness specified; surface treatment: manganese phosphate, mil-p-16232, type m, class 1; classification and inspection of investment casting iaw class 2, grade b, mil-c-6021
