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 5990-01-571-7468
NSN 5996-01-462-0112
NSN 5998-01-351-8722
NSN 5935-01-651-1158
NSN 6650-00-116-7439
NSN 5910-01-067-0611
NSN 5835-01-456-3922
NSN 5998-00-563-2071
NSN 5920-01-442-3395
NSN 5996-01-140-4424
NSN 5935-00-118-2649
NSN 5855-01-388-2424