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National Stock Number:
1240-00-620-3759
Federal Supply Class:
1240
National Item Identification Number:
006203759
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.
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Manufacturer Information:
| 8200224 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| GUIDE DESIGN | THREAD CHAMFER | | GUIDE LOCATION | EDGE OPPOSITE DRIVE EDGE | | HOLE CHAMFER ANGLE IN DEG | 45.0 | | HOLE CHAMFER DIAMETER | 0.865 INCHES NOMINAL | | HOLE DIAMETER | 0.741 INCHES MINIMUM AND 0.746 INCHES MAXIMUM | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | OVERALL LENGTH | 0.750 INCHES NOMINAL | | MATERIAL | ALUMINUM ALLOY 2024 | | RECESS DEPTH | 0.661 INCHES NOMINAL | | RECESS DIAMETER | 0.800 INCHES MINIMUM AND 0.805 INCHES MAXIMUM | | SETSCREW NOTCH | NOT PROVIDED | | SPECIAL FEATURES | EXTERNAL THREADED,RAISED PORTION ONLY 0.375 IN. OF OVERALL LENGTH | | STYLE DESIGNATOR | RECESSED | | THREAD SIZE | 1.062 IN.-32NS-2 |
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