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 6320-00-937-5625
NSN 7035-01-227-2546
NSN 2925-01-209-9245
NSN 5975-00-707-6245
NSN 5985-00-035-4558
NSN 6685-01-171-6979
NSN 6105-00-279-3044
NSN 5915-00-719-6455
NSN 6650-01-004-1625
NSN 5920-01-168-7810
NSN 6685-01-475-9364
NSN 5960-00-140-9583