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 5910-01-633-9963
NSN 6320-01-564-0893
NSN 5960-01-063-6846
NSN 6650-00-650-8080
NSN 5975-01-137-0890
NSN 5920-01-102-2442
NSN 5910-01-494-2385
NSN 6610-00-851-3203
NSN 7035-00-896-3213
NSN 5960-01-388-4951
NSN 6240-00-395-0019
NSN 5965-01-361-9760