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 6145-01-438-7322
NSN 5915-01-065-7183
NSN 6150-01-494-3068
NSN 6145-00-753-2264
NSN 6620-01-388-1430
NSN 5915-00-843-0242
NSN 5990-01-299-2014
NSN 5935-01-281-7686
NSN 7035-01-406-6510
NSN 5960-01-303-5884
NSN 5930-00-112-5317
NSN 5950-01-236-9942