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 6105-01-585-0050
NSN 6135-01-468-2970
NSN 5895-00-136-2525
NSN 6685-00-786-4050
NSN 5910-00-230-7398
NSN 6685-01-494-4503
NSN 5855-00-436-3852
NSN 5835-01-534-3172
NSN 6240-00-300-2736
NSN 5996-01-154-6478
NSN 5999-01-573-9564
NSN 4140-01-222-4459