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National Stock Number:
1240-00-996-3824
Federal Supply Class:
1240
National Item Identification Number:
009963824
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:
| 8619808 | 11934 | SEILER INSTRUMENT AND MANUFACTURING COMPANY, INCORPORATED | | 8619808 | 19200 | US ARMY ARDEC RDECOM | | 8619808 | 52808 | DUNLIN MANUFACTURING / SKYPEN INDUSTRIES INC | | 8619808 | 99620 | RUOFF & SONS INC |
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Techincal Specification:
| DRIVE FACILITY ANGULAR SPACING IN DEG | 180.0 | | DRIVE TYPE | SLOTTED | | DEPTH | 0.047 INCHES MINIMUM AND 0.062 INCHES MAXIMUM | | FSC APPLICATION DATA | PERISCOPE,TANK M36 | | GUIDE DESIGN | THREAD CHAMFER | | GUIDE LOCATION | BOTH EDGES | | HOLE DIAMETER | 1.188 INCHES MINIMUM AND 1.406 INCHES MAXIMUM | | HOLE OR SLOT QUANTITY | 2 | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | OVERALL LENGTH | 0.094 INCHES MINIMUM AND 0.109 INCHES MAXIMUM | | MATERIAL | ALUMINUM ALLOY 2024 | | RECESS DEPTH | 0.057 INCHES MINIMUM AND 0.082 INCHES MAXIMUM | | RECESS DIAMETER | 1.391 INCHES MINIMUM AND 1.406 INCHES MAXIMUM | | SETSCREW NOTCH | NOT PROVIDED | | WIDTH | 0.031 INCHES MINIMUM AND 0.047 INCHES MAXIMUM | | STYLE DESIGNATOR | RECESSED | | THREAD SIZE | 1.531 IN.-32NS-2A |
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