National Item Identification Number
00-504-5961
005045961
6650-00-504-5961
6650005045961
National Stock Number
Item Name
SPACER,OPTICAL ELEMENT
Federal Supply Class
6650
Referenced on: http://binocularsandtelescopes.tpub.com//TM-9-1240-400-34-P/TM-9-1240-400-34-P0257.htm
Referenced on: http://binocularsandtelescopes.tpub.com//TM-9-1240-400-34-P/TM-9-1240-400-34-P0294.htm
Referenced on: http://binocularsandtelescopes.tpub.com//TM-9-1240-400-34-P/TM-9-1240-400-34-P0303.htm
Referenced on: http://binocularsandtelescopes.tpub.com//TM-9-1240-400-34-P/TM-9-1240-400-34-P0316.htmDescription
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
NSN (National Stock Number) 6650-00-504-5961, 6650005045961 NIIN (National Identification Number) 00-504-5961, 005045961
Part Numbers (Reference Numbers)
5045961
Required Categories
MATERIAL
STYLE DESIGNATOR
OVERALL LENGTH
STRAIGHT BORE INSIDE DIAMETER
SERRA
Required Description
COPPER ALLOY
B4 SPACER
0.290 INCHES NOMINAL
1.250 INCHES NOMINAL
1.250 INCHE