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 6610-01-045-6372
NSN 5910-01-069-4164
NSN 6150-01-594-6350
NSN 6135-01-545-6582
NSN 5998-01-033-8285
NSN 5915-01-258-2165
NSN 5920-01-223-8588
NSN 6320-01-476-7702
NSN 5895-01-089-6822
NSN 5999-01-431-8878
NSN 6610-01-389-3082
NSN 6240-01-163-8795