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 5925-00-243-8694
NSN 6650-00-629-8027
NSN 5895-01-160-0526
NSN 5905-01-227-8338
NSN 5975-00-254-7217
NSN 6105-00-145-2607
NSN 2925-01-446-6523
NSN 5895-01-508-8991
NSN 7035-01-338-9971
NSN 5855-01-512-1926
NSN 5895-01-140-3369
NSN 6220-01-327-3272