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National Stock Number:
6650-00-628-2018
Federal Supply Class:
6650
National Item Identification Number:
006282018
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:
| 11737857 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| HOLE DIAMETER | 3.090 INCHES MINIMUM AND | | 4.010 INCHES MAXIMUM | | OVERALL LENGTH | 0.115 INCHES MINIMUM AND | | 0.135 INCHES MAXIMUM | | FLANGE DIAMETER | 4.970 INCHES MINIMUM AND | | 4.990 INCHES MAXIMUM | | MATERIAL | ALUMINUM ALLOY, QQ-A-250, T4 | | SURFACE TREATMENT | ANODIZE | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | SETSCREW NOTCH | NOT PROVIDED |
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