National Item Identification Number
00-167-7896
001677896
5855-00-167-7896
5855001677896
National Stock Number
Item Name
SPACER,OPTICAL ELEMENT
Federal Supply Class
5855
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)
80063
Reference Numbers (Part Numbers)
SC-C-635083
Required Categories
MATERIAL
STYLE DESIGNATOR
OVERALL LENGTH
STRAIGHT BORE INSIDE DIAMETER
BODY
Required Description
ALUMINUM ALLOY 6061
B3 SPACER
0.310 INCHES MINIMUM AND
0.314 INCHES MAXIMUM;