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 5905-01-128-3494
NSN 6685-01-277-8470
NSN 5960-01-061-2138
NSN 5996-00-719-9816
NSN 5905-00-217-7999
NSN 5920-01-528-6293
NSN 5990-00-969-6565
NSN 4140-01-125-5187
NSN 6110-00-168-8683
NSN 6610-00-315-9315
NSN 5895-01-123-6815
NSN 6240-01-419-5626