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 5998-00-583-8617
NSN 6220-01-327-3272
NSN 5855-01-093-3080
NSN 6620-01-025-1443
NSN 5990-00-938-4302
NSN 5950-00-862-3570
NSN 5895-00-670-1783
NSN 5930-01-417-1444
NSN 5996-01-178-3849
NSN 5835-01-009-8011
NSN 2925-00-915-1827
NSN 7035-01-223-4097