National Item Identification Number
00-389-3541
003893541
6650-00-389-3541
6650003893541
National Stock Number
Item Name
SPACER,OPTICAL ELEMENT
Federal Supply Class
6650
Description
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.
Commercial and Government Entity Code (Supplier Data)
Reference Numbers (Part Numbers)
202374PC8
Required Categories
Required Description