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 5950-01-328-8215
NSN 7035-01-259-6743
NSN 5905-00-679-4721
NSN 5965-01-162-4118
NSN 6645-01-600-7811
NSN 5990-01-328-9846
NSN 6610-01-189-3001
NSN 6135-01-359-4293
NSN 6320-01-301-4699
NSN 6145-01-555-6728
NSN 6220-00-008-5582
NSN 5855-00-879-7245