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National Stock Number:
1240-00-994-9200
Federal Supply Class:
1240
National Item Identification Number:
009949200
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:
| 8619885 | 05584 | AUTODYNE MANUFACTURING CO INC | | 8619885 | 11934 | SEILER INSTRUMENT AND MANUFACTURING COMPANY, INCORPORATED | | 8619885 | 19200 | US ARMY ARDEC RDECOM | | 8619885 | 27777 | L3 TECHNOLOGIES, INC. | | 8619885 | 2S308 | FREEHOLD MANUFACTURING ASSEMBLY COMPANY, INC. |
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Techincal Specification:
| DRIVE FACILITY ANGULAR SPACING IN DEG | 180.0 | | DRIVE TYPE | SLOTTED | | COUNTERBORE TAPER ANGLE IN DEG | 63.0 | | DEPTH | 0.031 INCHES NOMINAL | | FSC APPLICATION DATA | PERISCOPE,INTEGRATED WITH FIRE CONTROL EQUIPMENT | | HOLE CHAMFER ANGLE IN DEG | 45.0 | | HOLE DIAMETER | 1.469 INCHES MINIMUM AND 1.470 INCHES MAXIMUM | | HOLE OR SLOT QUANTITY | 2 | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | OVERALL LENGTH | 0.234 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-267, O-CANCELED FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | ALUMINUM ALLOY 2024 | | RECESS DEPTH | 0.1406 INCHES NOMINAL | | RECESS DIAMETER | 1.640 INCHES MINIMUM AND 1.645 INCHES MAXIMUM | | SETSCREW NOTCH | NOT PROVIDED | | WIDTH | 0.031 INCHES NOMINAL | | STYLE DESIGNATOR | RECESSED | | SURFACE TREATMENT | ENAMEL | | THREAD SIZE | 1.7188 IN.-32 INS-3A |
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