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 2925-01-083-3986
NSN 6645-01-578-6815
NSN 5999-01-359-5533
NSN 5990-01-249-8212
NSN 5996-01-574-0898
NSN 5945-00-821-3378
NSN 5935-00-111-8638
NSN 5998-01-162-3925
NSN 5996-01-421-4417
NSN 6220-01-526-8359
NSN 5855-01-329-3568
NSN 6105-01-412-2627