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National Stock Number:
1240-00-574-6417
Federal Supply Class:
1240
National Item Identification Number:
005746417
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:
| 5185475 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| DRIVE FACILITY ANGULAR SPACING IN DEG | 180.0180.0180.0 | | DRIVE TYPE | SLOTTEDSLOTTEDSLOTTED | | COUNTERBORE TAPER ANGLE IN DEG | 45.045.045.0 | | DEPTH | 0.031 INCHES NOMINAL0.031 INCHES NOMINAL0.031 INCHES NOMINAL | | FSC APPLICATION DATA | BINOCULAR,FIRE CONTROLBINOCULAR,FIRE CONTROLBINOCULAR,FIRE CONTROL | | HOLE CHAMFER ANGLE IN DEG | 30.030.030.0 | | HOLE CHAMFER DIAMETER | 0.822 INCHES NOMINAL0.822 INCHES NOMINAL0.822 INCHES NOMINAL | | HOLE DIAMETER | 0.785 INCHES NOMINAL0.785 INCHES NOMINAL0.785 INCHES NOMINAL | | HOLE OR SLOT QUANTITY | 222 | | OVERALL LENGTH | 0.172 INCHES NOMINAL0.172 INCHES NOMINAL0.172 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-200/3, T4 FED SPEC SINGLE MATERIAL RESPONSEQQ-A-200/3, T4 FED SPEC SINGLE MATERIAL RESPONSEQQ-A-200/3, T4 FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | ALUMINUM ALLOY 2024ALUMINUM ALLOY 2024ALUMINUM ALLOY 2024 | | RECESS DIAMETER | 0.882 INCHES NOMINAL0.882 INCHES NOMINAL0.882 INCHES NOMINAL | | RECESS DEPTH | 0.141 INCHES NOMINAL0.141 INCHES NOMINAL0.141 INCHES NOMINAL | | THREAD SIZE | 0.897 IN.-72 NS-30.897 IN.-72 NS-30.897 IN.-72 NS-3 | | WIDTH | 0.031 INCHES NOMINAL0.031 INCHES NOMINAL0.031 INCHES NOMINAL | | STYLE DESIGNATOR | RECESSEDRECESSEDRECESSED | | SURFACE TREATMENT | ANODIZEANODIZEANODIZE |
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