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 5950-00-189-6692
NSN 6105-01-465-9019
NSN 4140-00-232-1039
NSN 5855-01-191-3404
NSN 6620-01-431-9176
NSN 5965-01-271-0808
NSN 5935-01-414-8714
NSN 7035-01-340-7754
NSN 5895-01-634-0630
NSN 5915-00-059-1349
NSN 5920-00-901-4731
NSN 5930-01-040-9252