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National Stock Number:
5855-01-172-4568
Federal Supply Class:
5855
National Item Identification Number:
011724568
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:
| 13074802 | 04939 | LOCKHEED MARTIN CORPORATION | | 13074802 | 58260 | PROGRAM MANAGER ADVANCED ATTACK HELICOPTER BARCOM AMCPM-AAH |
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Techincal Specification:
| DRIVE TYPE | SLOTTED | | DEPTH | 0.050 INCHES NOMINAL | | GUIDE DESIGN | THREAD CHAMFER | | HOLE DIAMETER | 1.100 INCHES NOMINAL | | HOLE OR SLOT QUANTITY | 4 | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | OVERALL LENGTH | 0.160 INCHES NOMINAL | | MATERIAL | STEEL CORROSION RESISTING | | RECESS ANGLE IN DEG | 134.0 | | RECESS DEPTH | 0.039 INCHES NOMINAL | | SETSCREW NOTCH | NOT PROVIDED | | STYLE DESIGNATOR | RECESSED | | WIDTH | 0.060 INCHES NOMINAL | | THREAD SIZE | 1.313 IN.-32 |
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