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 5935-01-266-7379
NSN 6685-01-567-5073
NSN 5999-00-562-9039
NSN 5915-01-559-4927
NSN 5910-00-249-2551
NSN 5905-00-823-0033
NSN 5905-01-541-5010
NSN 6685-00-717-4058
NSN 6110-00-383-3572
NSN 6105-00-120-9601
NSN 6685-01-300-6047
NSN 5835-01-477-0137