National Item Identification Number
00-504-8238
005048238
6650-00-504-8238
6650005048238
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)
5048238
Required Categories
MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
STYLE DESIGNATOR
OVERALL LENGTH
Required Description
COPPER ALLOY
ASTM B135,ALLOY 2 ASSN STD SINGLE MATERIAL RESPONSE
B2 SPACER
0.