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 6145-01-512-1870
NSN 6240-01-190-9523
NSN 6240-01-435-4919
NSN 6610-01-194-1778
NSN 5960-00-818-8949
NSN 5965-01-616-6359
NSN 5999-00-285-2987
NSN 6645-00-616-1289
NSN 5985-01-518-3519
NSN 5945-01-113-8277
NSN 6610-01-035-1252
NSN 5999-00-004-2135