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National Stock Number:
1240-00-420-9122
Federal Supply Class:
1240
National Item Identification Number:
004209122
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:
| 10516720 | 19200 | US ARMY ARDEC RDECOM | | 1240004209122 | A00AM | E.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE |
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Techincal Specification:
| DRIVE TYPE | SLOTTED | | DRIVE FACILITY ANGULAR SPACING IN DEG | 180.0 | | DEPTH | 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM | | FSC APPLICATION DATA | PERISCOPE,TANK M32,M32C,M35,M36 | | HOLE DIAMETER | 1.000 INCHES MINIMUM AND 1.005 INCHES MAXIMUM | | HOLE OR SLOT QUANTITY | 2 | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6, ALLOY 2024, T351 FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | ALUMINUM ALLOY 2024 | | OVERALL LENGTH | 0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM | | RECESS ANGLE IN DEG | 160.0 | | RECESS DEPTH | 0.022 INCHES NOMINAL | | SETSCREW NOTCH | NOT PROVIDED | | STYLE DESIGNATOR | RECESSED | | SURFACE TREATMENT | ANODIZE | | THREAD SIZE | 1.312 IN.-32UNS-2A | | WIDTH | 0.062 INCHES MINIMUM AND 0.078 INCHES MAXIMUM |
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