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 5975-01-278-9382
NSN 6645-01-095-9681
NSN 5985-00-549-0377
NSN 5985-01-025-0114
NSN 6320-01-206-1055
NSN 5910-01-579-2614
NSN 5996-01-658-2878
NSN 6135-00-801-3493
NSN 6220-01-025-6140
NSN 5945-01-141-7497
NSN 5930-01-206-5559
NSN 6130-01-413-6823