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 6650-01-231-2082
NSN 6130-01-446-7154
NSN 5999-00-341-7637
NSN 7035-00-541-8516
NSN 6650-00-084-4258
NSN 6620-01-266-8894
NSN 5925-01-157-7805
NSN 5915-01-379-9932
NSN 5915-01-493-5067
NSN 6130-01-438-0251
NSN 6650-00-379-5434
NSN 5935-01-592-4045