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 5999-01-020-7641
NSN 5999-01-437-8843
NSN 5915-00-919-1762
NSN 6220-00-149-0977
NSN 2925-01-271-8727
NSN 6105-01-394-5305
NSN 6620-01-323-6091
NSN 5910-00-822-5826
NSN 5945-00-938-6510
NSN 5996-01-523-7449
NSN 5930-01-440-8629
NSN 5855-00-197-6387