6650-00-155-3342 PRISM,OPTICAL INSTRUMENT Index 1210-00-155-3344 BOX-GEAR

National Stock Number:
1240-00-155-3343

Federal Supply Class:
1240

National Item Identification Number:
001553343

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:
323285-710001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER
323285730003NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER
323285PC708638ALLIANT TECHSYSTEMS INC ORDNANCE SYSTEMS DIV
323285PC710001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER


Techincal Specification:
DRIVE FACILITY ANGULAR SPACING IN DEG180.0
DRIVE TYPESLOTTED
DEPTH0.050 INCHES NOMINAL
GUIDE DESIGNTHREAD RELIEF
GUIDE LOCATIONEDGE OPPOSITE DRIVE EDGE
HOLE CHAMFER ANGLE IN DEG0.0
HOLE CHAMFER DIAMETER0.188 INCHES NOMINAL
HOLE DIAMETER0.188 INCHES NOMINAL
HOLE OR SLOT QUANTITY2
INTERNAL ANNULAR SERRATIONNOT PROVIDED
OVERALL LENGTH0.200 INCHES NOMINAL
MATERIALCOPPER ALLOY
RECESS ANGLE IN DEG30.0
RECESS DEPTH0.150 INCHES NOMINAL
SETSCREW NOTCHNOT PROVIDED
WIDTH0.060 INCHES NOMINAL
STYLE DESIGNATORRECESSED
THREAD SIZE0.438 IN.-20


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