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 4140-00-375-9705
NSN 5835-01-152-9483
NSN 5910-01-587-5979
NSN 2925-00-888-9551
NSN 6320-00-308-7386
NSN 5975-01-569-4398
NSN 7035-01-072-3451
NSN 5999-01-355-9460
NSN 5915-01-604-8791
NSN 5999-00-338-1965
NSN 6105-00-968-3189
NSN 4140-00-451-8374