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National Stock Number:
1240-01-079-3051
Federal Supply Class:
1240
National Item Identification Number:
010793051
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:
| 12279244 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| DRIVE FACILITY ANGULAR SPACING IN DEG | 180.0 | | DRIVE TYPE | SLOTTED | | DEPTH | 0.060 INCHES NOMINAL | | FLANGE THREAD SIZE | 1.4375 IN.-32 | | GUIDE DESIGN | THREAD RELIEF | | GUIDE LOCATION | EDGE OPPOSITE DRIVE EDGE | | HOLE OR SLOT QUANTITY | 2 | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | OVERALL LENGTH | 0.312 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/3, ALLOY 2011, T3 FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | ALUMINUM ALLOY 2011 | | SETSCREW NOTCH | NOT PROVIDED | | SHOULDER LENGTH | 0.094 INCHES NOMINAL | | SHOULDER DIAMETER | 1.344 INCHES NOMINAL | | WIDTH | 0.060 INCHES NOMINAL | | STYLE DESIGNATOR | SHOULDERED | | SURFACE TREATMENT | ANODIZE | | TAPERED HOLE MINOR DIAMETER | 1.197 INCHES NOMINAL | | TAPER ANGLE IN DEG | 5.0 |
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