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 5945-00-584-2046
NSN 5996-01-052-1693
NSN 6320-00-242-3300
NSN 5915-01-145-4989
NSN 5950-01-481-4173
NSN 6150-01-478-6963
NSN 5999-01-660-0184
NSN 5950-01-492-5919
NSN 6620-01-415-5803
NSN 5925-01-463-8594
NSN 5985-01-410-2774
NSN 6620-01-006-4899