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National Stock Number:
1240-01-079-3053
Federal Supply Class:
1240
National Item Identification Number:
010793053
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:
| 12278948 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| DRIVE TYPE | SLOTTED | | DEPTH | 0.060 INCHES NOMINAL | | FLANGE DIAMETER | 2.062 INCHES NOMINAL | | GUIDE DESIGN | THREAD CHAMFER | | HOLE DIAMETER | 1.890 INCHES NOMINAL | | HOLE OR SLOT QUANTITY | 2 | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | OVERALL LENGTH | 0.375 INCHES NOMINAL | | MATERIAL | ALUMINUM ALLOY 2011 OR ALUMINUM ALLOY 6061 | | SETSCREW NOTCH | PROVIDED | | SHOULDER LENGTH | 0.281 INCHES NOMINAL | | SHOULDER DIAMETER | 2.000 INCHES NOMINAL | | WIDTH | 0.060 INCHES NOMINAL | | STYLE DESIGNATOR | SHOULDERED |
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