National Item Identification Number
01-442-1440
014421440
6650-01-442-1440
6650014421440
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)
11733413
Required Categories
MATERIAL
STYLE DESIGNATOR
BODY OUTSIDE DIAMETER
III END ITEM IDENTIFICATION
Required Description
ALUMINUM ALLOY 2024
B3 SPACER
4.077 INCHES NOMINAL
2310-01-344-9887
LAV-25(S