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 5998-00-774-4768
NSN 6685-00-150-5172
NSN 6150-01-316-4369
NSN 6130-01-301-0637
NSN 5920-00-043-0004
NSN 6105-01-259-6879
NSN 6145-01-169-8565
NSN 6105-01-456-4488
NSN 6150-01-525-7992
NSN 5835-01-227-2318
NSN 5998-01-339-0257
NSN 5990-00-254-4825