Holes are counterbored to 0.562 in. Dia. By 0.125 in. Deep and countersunk to 0.343 in. Dia. By 90 deg.; surface roughness=125 microinches; anodized per mil-a-8625, type ii, class 2, colorblack
A rigid metal item usually fabricated from steel castings and/or welded steel pieces and designed with one or more hole(s) in line to accompany and hold, align, or support a nonrotating mechanical shaft. It has mounting holes for fastening to a supporting member or main body. It may have provision to accommodate a pin or threaded fastener to hold the shaft in a fixed position.
Classification: Shaft couplings, except universal joints
NSN 6110-00-452-0448
NSN 6685-01-472-6737
NSN 5915-01-429-0210
NSN 5945-00-833-7745
NSN 7035-01-567-5486
NSN 5930-01-535-0988
NSN 6220-01-083-3092
NSN 5925-00-203-1278
NSN 5945-00-875-8886
NSN 4140-00-381-4563
NSN 4140-01-415-2478
NSN 5915-01-328-7525