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 6130-00-885-4046
NSN 6150-00-614-2132
NSN 6610-00-558-0480
NSN 5910-01-040-3189
NSN 5960-00-297-7099
NSN 5960-01-327-5922
NSN 7035-01-123-0085
NSN 5999-01-024-9547
NSN 5855-01-199-2046
NSN 5960-00-875-9823
NSN 5925-00-005-3694
NSN 6645-00-614-5302