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 5999-01-408-6213
NSN 5965-01-323-0501
NSN 6240-00-488-0278
NSN 5960-00-644-4982
NSN 5855-01-330-3669
NSN 6620-00-286-5721
NSN 5915-01-063-7134
NSN 5910-00-276-8592
NSN 5920-01-442-2894
NSN 5998-01-367-6359
NSN 5930-00-699-9439
NSN 5915-00-772-7919