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 6320-01-627-1594
NSN 2925-01-457-5649
NSN 6320-01-233-5798
NSN 6620-01-173-8804
NSN 5935-01-540-6260
NSN 5975-00-938-7905
NSN 5999-01-006-9942
NSN 6685-01-512-3214
NSN 5895-01-301-6101
NSN 4140-01-323-7214
NSN 5950-00-378-9959
NSN 5998-00-102-4207