5360-01-351-8908 SPRING,HELICAL,EXTENSION Index 5855-01-351-8910 SPACER,OPTICAL ELEMENT

National Stock Number:
5855-01-351-8909

Federal Supply Class:
5855

National Item Identification Number:
013518909

Description:
RETAINER,OPTICAL ELEMENT

Detail:
A cylindrical, externally threaded item having a centrally located hole specifically designed to retain by means of either a raised box (shoulder), or counterbore, countersink, or a similar shaped recess, an optical element such as a lens, reticle, cell, and the like, in optical assemblies. It must have drilled holes or slots to facilitate assembly and disassembly. For items which house the optical element(s), and form the internal or central portions of an optical system, see CELL, OPTICAL ELEMENT. Excludes RING, EXTERNALLY THREADED.


Manufacturer Information:
500338727361BURKE PRODUCTS INC
500338754490DEPT OF THE ARMY U S ARMY ELECTRONICS COMMAND NIGHT VISION LABORATORY
BP1562127361BURKE PRODUCTS INC


Techincal Specification:
DRIVE TYPEKNURL
FSC APPLICATION DATANIGHT VISION EQUIPMENT,EMITTED AND REFLECTED RADIATION
GUIDE DESIGNTHREAD CHAMFER
GUIDE LOCATIONBOTH EDGES
HOLE CHAMFER ANGLE IN DEG45.0
HOLE CHAMFER DIAMETER1.250 INCHES MINIMUM AND 1.255 INCHES MAXIMUM
HOLE DIAMETER1.100 INCHES MINIMUM AND 1.101 INCHES MAXIMUM
INTERNAL ANNULAR SERRATIONPROVIDED
OVERALL LENGTH1.125 INCHES NOMINAL
MATERIALALUMINUM ALLOY 2011
RECESS DEPTH0.252 INCHES NOMINAL
RECESS DIAMETER1.270 INCHES NOMINAL
SETSCREW NOTCHNOT PROVIDED
STYLE DESIGNATORRECESSED


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