Center hole shape-round w/flats, 0.517 in. Width between flats
No other part numbers with same form, fit, and function found.
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 5975-00-175-6696
NSN 5935-00-615-5348
NSN 2925-01-055-7607
NSN 6610-01-283-5629
NSN 6645-00-240-7162
NSN 5930-01-360-6169
NSN 6620-00-701-3575
NSN 6130-01-162-2310
NSN 5855-01-180-5369
NSN 4140-01-487-6227
NSN 2925-00-824-2186
NSN 5930-01-316-6715