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 5999-01-281-4805
NSN 5999-00-076-8222
NSN 5905-01-383-5597
NSN 5990-00-170-4239
NSN 5998-01-387-9323
NSN 5950-01-053-1980
NSN 5835-01-647-4859
NSN 5905-01-500-2710
NSN 6240-01-384-3887
NSN 5975-01-352-5853
NSN 6685-01-530-3718
NSN 4140-01-459-6878