MRC:
A recording of the physical,functional,and performance characteristics for an item of supply.TEXT
General Description:
Steel, alloy 4130 h through 4140h, 8637h through 8640h, spec qq-s-627, h.R. Annealed or h.R. Spheroidized annealed, finish clean per specification tt-c-490, prime per specification tt-p-636 or tt-e-485, type opt, final finish black per specification tt-e-529, 3 holes 0.438 min 0.460 maximum in. Dia, hole 0.438 min 0.453 maximum in. Dia, 15 degrees 30 minutes; 2 degrees 30 minutes, 0.212 in. Thk, apply part no. Per mil-std-130
