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National Stock Number:
6650-01-471-6476
Federal Supply Class:
6650
National Item Identification Number:
014716476
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:
| 12975413 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| GUIDE DESIGN | THREAD RELIEF | | HOLE CHAMFER ANGLE IN DEG | 50.0 | | HOLE CHAMFER DIAMETER | 1.970 INCHES NOMINAL | | HOLE DIAMETER | 1.740 INCHES NOMINAL | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | MATERIAL | ALUMINUM ALLOY 6061 | | OVERALL LENGTH | 0.169 INCHES NOMINAL | | RECESS ANGLE IN DEG | 80.0 | | RECESS DEPTH | 0.149 INCHES NOMINAL | | SETSCREW NOTCH | PROVIDED | | STYLE DESIGNATOR | RECESSED |
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