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 5945-01-237-4365
NSN 5975-01-056-5514
NSN 6150-00-959-4560
NSN 5905-01-214-2207
NSN 6620-01-132-5190
NSN 2925-01-415-2140
NSN 5835-00-269-2232
NSN 5990-01-310-5630
NSN 4140-00-100-4563
NSN 5990-01-348-9843
NSN 5910-01-537-2037
NSN 5985-01-044-4530