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National Stock Number:
5855-01-180-5369
Federal Supply Class:
5855
National Item Identification Number:
011805369
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:
| 13074745 | 04939 | LOCKHEED MARTIN CORPORATION | | 13074745 | 58260 | PROGRAM MANAGER ADVANCED ATTACK HELICOPTER BARCOM AMCPM-AAH |
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Techincal Specification:
| DEPTH | 0.060 INCHES NOMINAL | | DRIVE TYPE | SLOTTED | | FLANGE THREAD SIZE | 2.125 IN.-40 | | GUIDE DESIGN | THREAD RELIEF | | GUIDE LOCATION | EDGE OPPOSITE DRIVE EDGE | | HOLE DIAMETER | 1.990 INCHES NOMINAL | | HOLE OR SLOT QUANTITY | 4 | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | MATERIAL | ALUMINUM ALLOY 6061 | | OVERALL LENGTH | 0.625 INCHES NOMINAL | | SETSCREW NOTCH | NOT PROVIDED | | SHOULDER DIAMETER | 2.070 INCHES NOMINAL | | SHOULDER LENGTH | 0.375 INCHES NOMINAL | | STYLE DESIGNATOR | SHOULDERED | | SURFACE TREATMENT | ANODIZE | | WIDTH | 0.060 INCHES NOMINAL |
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