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National Stock Number:
1240-01-239-2396
Federal Supply Class:
1240
National Item Identification Number:
012392396
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:
| SM-C-805055 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR |
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Techincal Specification:
| DEPTH | 0.150 INCHES NOMINAL | | DRIVE TYPE | SLOTTED | | DRIVE FACILITY ANGULAR SPACING IN DEG | 90.0 | | FLANGE THREAD SIZE | 3.500IN.-28 | | GUIDE DESIGN | THREAD CHAMFER | | GUIDE LOCATION | EDGE OPPOSITE DRIVE EDGE | | HOLE DIAMETER | 3.170 INCHES NOMINAL | | HOLE OR SLOT QUANTITY | 4 | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-200/8, 6061, T6 FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | ALUMINUM ALLOY 6061 | | OVERALL LENGTH | 0.570 INCHES NOMINAL | | SETSCREW NOTCH | NOT PROVIDED | | SHOULDER THREAD SIZE | 3.380IN.-28 | | SHOULDER LENGTH | 0.200 INCHES NOMINAL | | STYLE DESIGNATOR | SHOULDERED | | WIDTH | 0.060 INCHES NOMINAL |
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