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 6645-00-222-2785
NSN 6130-00-224-8830
NSN 6620-00-073-9859
NSN 5965-00-900-6074
NSN 7035-01-017-2702
NSN 7035-01-462-5766
NSN 5945-00-269-5375
NSN 5910-01-224-8023
NSN 5985-01-538-6099
NSN 5950-00-498-3507
NSN 6240-01-525-2401
NSN 6240-00-034-5909