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National Stock Number:
1240-00-221-9429
Federal Supply Class:
1240
National Item Identification Number:
002219429
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:
| 8626235 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| DRIVE TYPE | DRILLED HOLE | | DRIVE FACILITY ANGULAR SPACING IN DEG | 180.0 | | DEPTH | 0.062 INCHES NOMINAL | | DIAMETER | 0.062 INCHES NOMINAL | | FSC APPLICATION DATA | TELESCOPE,PANORAMIC M113 | | HOLE OR SLOT QUANTITY | 2 | | HOLE DIAMETER | 1.734 INCHES MINIMUM AND 1.766 INCHES MAXIMUM | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | OVERALL LENGTH | 0.125 INCHES MINIMUM AND 0.156 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | WW-T-700, TEMPER T3 FED SPEC 1ST MATERIAL RESPONSE OR WW-T-700/3, T42 FED SPEC 2ND MATERIAL RESPONSE | | MATERIAL | ALUMINUM ALLOY AND ALUMINUM ALLOY 2024 | | RADIUS FROM GEOMETRIC AXIS TO HOLE CENTER | 0.929 INCHES MINIMUM AND 0.945 INCHES MAXIMUM | | RECESS DEPTH | 0.031 INCHES MINIMUM AND 0.047 INCHES MAXIMUM | | RECESS DIAMETER | 1.891 INCHES MINIMUM AND 1.922 INCHES MAXIMUM | | SETSCREW NOTCH | NOT PROVIDED | | STYLE DESIGNATOR | RECESSED | | SURFACE TREATMENT | ANODIZE | | THREAD SIZE | 2.062 IN.-32UNS-2A |
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