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 5985-00-964-7692
NSN 5935-00-935-5769
NSN 7035-01-397-1519
NSN 5999-00-358-1933
NSN 5920-01-076-4705
NSN 5950-01-579-8879
NSN 5985-00-840-7104
NSN 6110-00-161-4115
NSN 5985-01-270-2817
NSN 2925-01-043-9786
NSN 5905-00-580-1748
NSN 4140-01-649-7823