A washer having a centrally located hole and two flat bearing surfaces which are not parallel.
NSN 6620-00-727-8043
NSN 6320-01-600-5808
NSN 5905-00-362-2273
NSN 6650-01-052-0015
NSN 6135-01-041-3829
NSN 6220-01-467-8183
NSN 5999-00-903-1004
NSN 6150-01-157-0485
NSN 6620-00-800-1285
NSN 6110-01-447-2770
NSN 6105-00-482-9162
NSN 5999-01-013-7799