Shoulder has two flat paralell surfaces
No other part numbers with same form, fit, and function found.
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 5965-01-289-2107
NSN 2925-01-587-3956
NSN 6650-00-195-7519
NSN 6145-01-063-6486
NSN 5915-01-107-6488
NSN 5930-01-440-8629
NSN 6110-00-301-4874
NSN 6610-00-000-0192
NSN 5920-01-483-1981
NSN 6130-01-064-8964
NSN 5985-01-577-8857
NSN 6620-01-481-1358