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 6645-00-183-8812
NSN 6105-00-753-0924
NSN 6610-01-444-4001
NSN 6110-00-395-7040
NSN 5925-01-089-9791
NSN 5950-01-229-2978
NSN 5935-00-085-9533
NSN 2925-01-545-2717
NSN 6130-01-297-1571
NSN 5999-01-194-4496
NSN 5965-01-469-2504
NSN 5895-01-278-9379