3805-00-401-8195

5365-22-305-4083 5365223054083 223054083 is 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 overall length must exceed 25 percent of the outside diameter or distance across peripheral flats of the body. (when the length, outside diameter, and/or distance across peripheral flats are designed as a tolerance, the maximum dimension will be used to determine compliance). for items having other than a round or hexagon peripheral shape, see spacer, plate. excludes items with lubricating features, see bearing, sleeve and bushing, sleeve. see also bushing, tapered; spacer, ring; washer, flat; and washer, (as modified).

7030-12-305-4083 7030123054083 123054083

6650-01-305-4083 6650013054083 013054083 is a tubular shaped item designed to maintain a predetermined distance between optical elements, such as lenses, reticles, and the like. the bore may be straight, tapered or counterbored, and may have annular serrations to converge or diverge light rays. the surfaces, which mate with the optics, are usually chamfered, concave, and/or have a specified finish designation in the range of 1 to 125 microinches arithmetical average (aa). see also spacer, sleeve and cell, optical element.

1620-00-305-4083 1620003054083 003054083

5331-14-305-4083 5331143054083 143054083 is a nonmetallic circular item with an aperature, having a solid round cross-section. they are used primarily for sealing. for items with other than round cross section, see packing,preformed. for noncircular items with a round cross-section, see seal,nonmetallic round section and rubber,round section.