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 6220-01-315-6283
NSN 6650-00-522-5795
NSN 6620-00-900-3986
NSN 6685-01-495-1322
NSN 5935-01-210-6014
NSN 5910-01-532-9276
NSN 5945-00-529-0409
NSN 5905-01-602-0277
NSN 6105-00-891-9768
NSN 6645-00-241-3280
NSN 6320-01-407-8663
NSN 6610-01-010-4516