MRC:
A recording of the physical,functional,and performance characteristics for an item of supply.TEXT
General Description:
Material, steel, qq-s-637, composition b1111, phosphatecoated finish, mil-c-12968, type b, class 1, 3.750 in. Dia, 2.312 in. Thk, surface finish, 125 microinch aa, bearingsurface data, 1st face, 2.062 in. Square aperture, 1.000 indeep, 0.062 in. Offset from center, 4 unthd holes, 0.375 in.Dia, 1.125 in. Deep, 2.062 in. C to c, 0.062 in. Offset fromcenter, 2nd face, 1.375 in. Diameter aperture, 1.312 in. Deep, chamfered 0.062 in. By 45 deg, periphery surface data, 3 thdholes, 2 holes thd 1/2-13 nc-2a, 90 degrees apart, 0.500 in. Fromedge of 1st face, 1 hole thd 3/8-16unc-21, 0.375 in. From edgeof 2nd face aligned w/centerline of 1/2 in. Tapped hole, supplied with 1 thumbscrew, fscm 19207/8375294, 2 setscrews, fscm 21450/139498
