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 6620-00-273-8735
NSN 6685-01-377-4716
NSN 5975-01-422-3800
NSN 5990-01-056-0893
NSN 6645-01-609-4753
NSN 6610-00-996-1734
NSN 6110-01-649-1302
NSN 5835-01-555-8963
NSN 5920-00-285-2245
NSN 5999-00-470-5024
NSN 5999-01-249-0220
NSN 5855-01-650-3762