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National Stock Number:
1240-01-131-5320
Federal Supply Class:
1240
National Item Identification Number:
011315320
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:
| 12309689 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| DRIVE TYPE | DRILLED HOLE | | DEPTH | 0.360 INCHES NOMINAL | | DIAMETER | 0.078 INCHES NOMINAL | | FLANGE DIAMETER | 2.000 INCHES NOMINAL | | GUIDE DESIGN | THREAD RELIEF | | GUIDE LOCATION | SHOULDER | | HOLE OR SLOT QUANTITY | 1 | | HOLE DIAMETER | 1.500 INCHES MINIMUM AND 1.510 INCHES MAXIMUM | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | OVERALL LENGTH | 0.350 INCHES MINIMUM AND 0.360 INCHES MAXIMUM | | MATERIAL | ALUMINUM ALLOY 2011 AND ALUMINUM ALLOY 2024 AND ALUMINUM ALLOY 6061 | | RADIUS FROM GEOMETRIC AXIS TO HOLE CENTER | 0.834 INCHES NOMINAL | | SETSCREW NOTCH | NOT PROVIDED | | SHOULDER THREAD SIZE | 1.B75IN-32 UNS-2A | | SHOULDER LENGTH | 0.300 INCHES MINIMUM AND 0.310 INCHES MAXIMUM | | STYLE DESIGNATOR | SHOULDERED |
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