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 6645-01-384-0628
NSN 2925-01-040-6354
NSN 5920-01-441-0362
NSN 6145-01-301-2003
NSN 5975-01-417-3522
NSN 5950-01-641-8469
NSN 5950-01-514-7603
NSN 5945-00-268-3559
NSN 5996-01-315-6032
NSN 6685-01-114-2468
NSN 5960-01-017-5449
NSN 5835-01-198-6814