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 5915-00-457-1016
NSN 6105-01-599-1590
NSN 6105-01-197-9632
NSN 5930-00-928-0949
NSN 5935-00-270-1271
NSN 6610-01-422-2376
NSN 5998-01-141-7486
NSN 7035-00-523-7492
NSN 6685-01-220-9354
NSN 6650-00-195-7519
NSN 6685-01-341-8035
NSN 6220-01-144-8473