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 5935-00-960-6260
NSN 5985-00-291-1140
NSN 2925-01-359-4027
NSN 5905-00-472-7795
NSN 5996-00-319-1820
NSN 5975-00-253-0878
NSN 6220-00-296-4101
NSN 4140-00-891-5407
NSN 6240-00-134-9094
NSN 5998-01-126-5212
NSN 5835-01-328-6626
NSN 2925-00-024-6392