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 5915-01-207-0013
NSN 6145-01-568-6977
NSN 6650-00-070-5952
NSN 6240-01-281-7249
NSN 5920-01-137-2410
NSN 5920-01-031-7891
NSN 6240-01-188-1413
NSN 5905-00-656-8140
NSN 5920-01-567-9057
NSN 6320-00-149-7570
NSN 5935-00-142-0880
NSN 5855-00-198-3197