A tubular shaped item with a round or hexagon peripheral shape having two flat bearing surfaces perpendicular to the axis of the centrally located hole. It is designed to maintain a predetermined distance between assembled parts. The item may be with or without flange(s) of any peripheral shape. The length must exceed 25 percent of the outside diameter or distance across peripheral flats. (when the length, outside diameter, and/or distance across peripheral flats are designated as a tolerance, the maximum dimension will be used to determine compliance.) it must have one or more internal steps (counterbores) and/or external steps on either or both bearing surfaces. Excludes spacer, optical element. See also washer, recessed and washer, shouldered and recessed.
NSN 5999-00-172-3845
NSN 5960-01-293-6624
NSN 4140-01-156-6551
NSN 5990-01-298-3152
NSN 5945-01-081-3595
NSN 6610-00-794-7267
NSN 5985-00-397-7296
NSN 5950-01-650-0053
NSN 5855-01-010-4921
NSN 6240-01-580-4951
NSN 5965-01-526-3190
NSN 2925-01-505-1666