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 5835-00-143-4153
NSN 6130-01-025-1540
NSN 5985-01-197-7905
NSN 6650-01-064-3557
NSN 6220-01-574-1903
NSN 5996-00-890-5254
NSN 5999-01-618-6064
NSN 6685-00-136-3151
NSN 5935-01-391-7821
NSN 5915-01-086-0496
NSN 6685-00-370-5359
NSN 5835-01-328-6626