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 5895-01-126-9106
NSN 5895-00-578-8424
NSN 6240-01-004-9634
NSN 6320-01-021-6633
NSN 5965-00-903-0845
NSN 5855-01-160-3802
NSN 6645-00-849-4429
NSN 4140-00-150-8265
NSN 5835-01-228-8666
NSN 5895-00-600-1409
NSN 6105-01-371-3733
NSN 6610-00-963-9435