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 5930-00-030-5245
NSN 5895-01-450-4797
NSN 5935-00-558-4755
NSN 5990-00-015-3907
NSN 6685-01-228-2893
NSN 5950-01-031-3257
NSN 5920-00-759-1003
NSN 5925-00-554-4114
NSN 6220-00-732-2026
NSN 6610-01-376-9199
NSN 6685-00-739-5926
NSN 5905-01-141-3576