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 6105-00-716-3538
NSN 6145-01-506-8222
NSN 6135-00-900-2139
NSN 6130-01-116-2571
NSN 5998-01-528-3679
NSN 5925-00-304-3315
NSN 5975-01-184-8405
NSN 2925-01-443-4216
NSN 5990-01-651-6364
NSN 6150-00-528-4175
NSN 7035-00-145-9138
NSN 4140-01-539-4354