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 6220-01-383-1523
NSN 2925-01-085-0691
NSN 6110-00-958-3794
NSN 5960-01-135-0463
NSN 5930-00-288-1882
NSN 6220-01-024-9444
NSN 7035-00-981-7216
NSN 7035-01-347-4429
NSN 6220-00-932-4992
NSN 6130-01-535-0952
NSN 6610-01-625-1685
NSN 6645-01-237-7876