National Item Identification Number
01-442-1438
014421438
6650-01-442-1438
6650014421438
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)
11733432
Required Categories
MATERIAL
OVERALL THICKNESS
STYLE DESIGNATOR
OVERALL LENGTH
BODY OUTSIDE DIAM
Required Description
ALUMINUM ALLOY 2024
0.500 INCHES NOMINAL
B5 SPACER
0.500 INCHES NOMINAL
2.10