National Item Identification Number
00-245-8442
002458442
5855-00-245-8442
5855002458442
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-635174
Required Categories
MATERIAL
SPECIAL FEATURES
SPECIAL TEST FEATURES
III SUPPLEMENTARY FEATURES
I
Required Description
PLASTIC
O/A DIA OF 2.156 IN. PORM 0.010 IN.,INSIDE DIA OF 1.790 IN. PORM 0.010