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 5996-00-756-4376
NSN 5999-01-362-4642
NSN 5905-00-466-1814
NSN 5915-00-204-7925
NSN 6650-01-202-9143
NSN 6685-00-725-7506
NSN 5915-01-224-1604
NSN 5920-01-460-9798
NSN 5855-01-535-7127
NSN 6145-01-069-5286
NSN 5990-00-553-6716
NSN 5998-01-534-6251