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 5960-00-418-3588
NSN 5935-01-302-0546
NSN 5895-00-783-6038
NSN 5915-01-440-9298
NSN 2925-01-203-0493
NSN 6610-01-066-4664
NSN 4140-01-143-5397
NSN 6105-01-123-8887
NSN 6145-01-464-1920
NSN 6320-01-062-9351
NSN 6105-00-081-9400
NSN 6130-01-089-7426