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National Stock Number:
1240-01-129-0936
Federal Supply Class:
1240
National Item Identification Number:
011290936
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:
| 12309701 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| FLANGE DIAMETER | 1.7500 INCHES NOMINAL | | GUIDE DESIGN | THREAD CHAMFER | | GUIDE LOCATION | BOTH EDGES | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | OVERALL LENGTH | 0.3120 INCHES NOMINAL | | MATERIAL | ALUMINUM ALLOY 2011 | | SETSCREW NOTCH | NOT PROVIDED | | SHOULDER LENGTH | 0.1250 INCHES NOMINAL | | SHOULDER DIAMETER | 1.6250 INCHES NOMINAL | | STYLE DESIGNATOR | SHOULDERED | | TAPER ANGLE IN DEG | 15.0 | | TAPERED HOLE MINOR DIAMETER | 1.4780 INCHES NOMINAL |
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