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National Stock Number:
5855-01-172-2225
Federal Supply Class:
5855
National Item Identification Number:
011722225
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:
| 13074672 | 04939 | LOCKHEED MARTIN CORPORATION | | 13074672 | 58260 | PROGRAM MANAGER ADVANCED ATTACK HELICOPTER BARCOM AMCPM-AAH |
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Techincal Specification:
| DRIVE TYPE | SLOTTED | | DIAMETER | 1.500 INCHES NOMINAL | | GUIDE DESIGN | THREAD RELIEF | | HOLE CHAMFER ANGLE IN DEG | 45.0 | | HOLE OR SLOT QUANTITY | 4 | | HOLE DIAMETER | 1.300 INCHES NOMINAL | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | OVERALL LENGTH | 0.190 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-P-46131,TYPE 3,CLASS 1 MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | PLASTIC POLYPHENYLENE OXIDE | | RECESS DEPTH | 0.040 INCHES NOMINAL | | RECESS DIAMETER | 1.500 INCHES NOMINAL | | SETSCREW NOTCH | NOT PROVIDED | | STYLE DESIGNATOR | RECESSED | | THREAD SIZE | AA1.500 |
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