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National Stock Number:
1240-01-187-1085
Federal Supply Class:
1240
National Item Identification Number:
011871085
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:
| 12337485 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | 12337485 | 28375 | SPECTRON INC | | A11900 | 05584 | AUTODYNE MANUFACTURING CO INC | | 12337485 | 5A910 | ELC INDUSTRIES CORP. |
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Techincal Specification:
| DRIVE TYPE | DRILLED HOLE | | HOLE OR SLOT QUANTITY | 12 | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | MATERIAL | STEEL | | RECESS DEPTH | 1.190 INCHES NOMINAL | | RECESS DIAMETER | 2.190 INCHES NOMINAL | | SETSCREW NOTCH | NOT PROVIDED | | SPECIAL FEATURES | MATERIAL IS PER ASTM-A569 OR ASTM-A366; SURFACE TREATMENT IS PER TT-E-489 | | SURFACE TREATMENT | ENAMEL |
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