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National Stock Number:
1240-00-382-0884
Federal Supply Class:
1240
National Item Identification Number:
003820884
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:
| 217468PC11 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER |
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Techincal Specification:
| DRIVE FACILITY ANGULAR SPACING IN DEG | 180.0 | | DRIVE TYPE | SLOTTED | | DEPTH | 0.050 INCHES NOMINAL | | GUIDE DESIGN | THREAD CHAMFER | | GUIDE LOCATION | EDGE OPPOSITE DRIVE EDGE | | HOLE CHAMFER ANGLE IN DEG | 30.0 | | HOLE CHAMFER DIAMETER | 1.720 INCHES NOMINAL | | HOLE DIAMETER | 1.358 INCHES NOMINAL | | HOLE OR SLOT QUANTITY | 2 | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | OVERALL LENGTH | 0.460 INCHES NOMINAL | | MATERIAL | COPPER ALLOY | | RECESS DEPTH | 0.300 INCHES NOMINAL | | RECESS DIAMETER | 1.720 INCHES NOMINAL | | SETSCREW NOTCH | NOT PROVIDED | | WIDTH | 0.080 INCHES NOMINAL | | STYLE DESIGNATOR | RECESSED | | THREAD SIZE | 1.938 IN.-32 |
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