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National Stock Number:
6650-01-286-3417
Federal Supply Class:
6650
National Item Identification Number:
012863417
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:
| 717512312-001 | 04939 | LOCKHEED MARTIN CORPORATION | | 717512312-001 | 66673 | D. M. T INC |
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Techincal Specification:
| HOLE DIAMETER | 2.500 INCHES NOMINAL | | MATERIAL | PLASTIC | | SPECIAL FEATURES | 125 MICROINCH SURFACE FINISH |
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