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National Stock Number:
5855-01-039-2851
Federal Supply Class:
5855
National Item Identification Number:
010392851
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:
| SM-D-850323 | 04YE2 | VALCORE MANUFACTURING LLC | | SM-D-850323 | 20723 | VALCORE MANUFACTURING LLC | | SM-D-850323 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR |
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Techincal Specification:
| DRIVE FACILITY ANGULAR SPACING IN DEG | 120.0 | | DRIVE TYPE | DRILLED HOLE | | DIAMETER | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM | | FLANGE DIAMETER | 3.495 INCHES MINIMUM AND 3.505 INCHES MAXIMUM | | FSC APPLICATION DATA | NIGHT VISION EQUIPMENT | | GUIDE DESIGN | THREAD RELIEF | | HOLE OR SLOT QUANTITY | 3 | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | OVERALL LENGTH | 0.734 INCHES MINIMUM AND 0.744 INCHES MAXIMUM | | MATERIAL | ALUMINUM ALLOY 6061 | | RADIUS FROM GEOMETRIC AXIS TO HOLE CENTER | 1.585 INCHES NOMINAL | | SETSCREW NOTCH | NOT PROVIDED | | SHOULDER LENGTH | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM | | SHOULDER THREAD SIZE | 3.380 IN.-32 | | STYLE DESIGNATOR | SHOULDERED | | TAPERED HOLE MINOR DIAMETER | 3.120 INCHES MINIMUM AND 3.130 INCHES MAXIMUM | | TAPER ANGLE IN DEG | 7.0 |
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