A washer, round in shape, having a centrally located hole. One bearing surface is flat, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. Either or both of the bearing surfaces must be broken by a counterbore, countersink, or similar shaped recess. The thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. For items having a shoulder (boss) of greater thickness, use bearing, sleeve; bushing, sleeve; or spacer, sleeve. Excludes insulator, washer and thrust type washers.
Classification: Cotters, cotter-pins, washers and similar articles, of aluminum
NSN 6150-01-206-4808
NSN 6135-00-816-9052
NSN 5965-01-544-9395
NSN 5935-01-367-2245
NSN 6110-01-475-6835
NSN 7035-01-173-0529
NSN 5990-00-428-1895
NSN 6610-01-202-0371
NSN 5915-00-149-1458
NSN 5935-01-525-6847
NSN 5905-00-241-3118
NSN 5930-01-013-9251