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 6220-00-407-3242
NSN 6240-01-406-5345
NSN 5895-01-329-7926
NSN 6105-01-581-3247
NSN 5945-00-276-9274
NSN 5996-00-841-5534
NSN 5998-01-476-7129
NSN 5910-00-598-3674
NSN 7035-00-007-7023
NSN 5930-01-166-4065
NSN 6135-00-284-1406
NSN 5996-00-826-3198