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 5935-01-317-7847
NSN 6610-01-125-0776
NSN 6145-01-070-3043
NSN 5930-01-393-3581
NSN 6145-01-571-7928
NSN 7035-00-299-7150
NSN 5935-00-659-6877
NSN 6320-01-497-3116
NSN 5985-01-422-0508
NSN 6150-01-315-0320
NSN 6105-01-441-9312
NSN 6650-01-577-5309