National Item Identification Number
00-531-9074
005319074
6650-00-531-9074
6650005319074
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)
19200
Reference Numbers (Part Numbers)
5319074
Required Categories
MATERIAL
STYLE DESIGNATOR
OVERALL LENGTH
STRAIGHT BORE INSIDE DIAMETER
END I
Required Description
COPPER ALLOY
B3 SPACER
0.290 INCHES NOMINAL
1.040 INCHES NOMINAL
25.0 DEGREE