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 6320-00-823-2015
NSN 6135-01-495-0933
NSN 6135-01-307-6006
NSN 6620-00-193-9503
NSN 5985-01-599-2503
NSN 5990-01-386-8051
NSN 5999-01-488-4326
NSN 5905-01-399-1587
NSN 5925-01-459-7882
NSN 6135-00-274-4037
NSN 6320-01-338-6006
NSN 6105-01-229-9872