A washer having a centrally located hole and two flat bearing surfaces which are not parallel.
NSN 5925-01-162-9074
NSN 5935-00-905-5276
NSN 5960-01-212-4227
NSN 5920-01-521-4262
NSN 5998-00-026-1918
NSN 5950-01-649-1289
NSN 6650-01-508-8939
NSN 6135-01-426-8282
NSN 6150-00-141-8793
NSN 5975-01-078-0332
NSN 4140-01-470-6558
NSN 5915-00-703-3001