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 6685-01-612-2825
NSN 7035-00-213-2387
NSN 6620-00-189-2381
NSN 6135-00-299-6918
NSN 5996-01-058-8227
NSN 6240-01-147-0379
NSN 5930-00-011-1618
NSN 5855-00-482-9876
NSN 6105-01-200-8011
NSN 5996-01-173-3202
NSN 6685-00-817-5694
NSN 5910-00-840-6532