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National Stock Number:
1240-00-157-9642
Federal Supply Class:
1240
National Item Identification Number:
001579642
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:
| 481130PC1 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | | 481130PC1 | 56232 | LOCKHEED MARTIN CORPORATION |
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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 | 1.820 INCHES NOMINAL | | HOLE DIAMETER | 1.718 INCHES NOMINAL | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | OVERALL LENGTH | 0.309 INCHES NOMINAL | | MATERIAL | COPPER ALLOY | | RECESS DEPTH | 0.195 INCHES NOMINAL | | RECESS DIAMETER | 1.772 INCHES NOMINAL | | SETSCREW NOTCH | NOT PROVIDED | | STYLE DESIGNATOR | RECESSED | | SURFACE TREATMENT | FNAAF0 | | THREAD SIZE | 2.000 IN.-32 |
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