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 6220-01-415-5698
NSN 6240-01-206-4760
NSN 5960-01-226-0342
NSN 5930-01-203-5870
NSN 7035-01-444-4240
NSN 5930-01-443-3096
NSN 5835-01-116-2369
NSN 5950-00-470-0335
NSN 6145-01-607-4778
NSN 5910-01-579-3434
NSN 6145-01-550-9281
NSN 5985-00-074-3308