National Item Identification Number
01-171-2835
011712835
6650-01-171-2835
6650011712835
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)
04939
Reference Numbers (Part Numbers)
13074803
13074803
Required Categories
MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
OVERALL LENGTH
TAPER BORE MINOR
Required Description
STEEL COMP 416
ASTM A582,TYPE 416 ASSN STD SINGLE MATERIAL RESPONSE
0.127 INCH