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 5975-00-212-6249
NSN 6650-01-141-5999
NSN 6645-00-633-3824
NSN 5895-01-097-1463
NSN 5965-00-799-5490
NSN 6105-00-299-6373
NSN 5985-00-139-6025
NSN 4140-01-552-3652
NSN 6620-00-585-5443
NSN 4140-00-707-5963
NSN 5950-01-129-2625
NSN 5990-01-386-5561