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National Stock Number:
1240-01-342-8454
Federal Supply Class:
1240
National Item Identification Number:
013428454
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:
| 717512394-002 | 04939 | LOCKHEED MARTIN CORPORATION | | 717512394-002 | 11934 | SEILER INSTRUMENT AND MANUFACTURING COMPANY, INCORPORATED | | 717512394-002 | 2S308 | FREEHOLD MANUFACTURING ASSEMBLY COMPANY, INC. | | 717512394-002 | 63592 | STARWIN INDUSTRIES, LLC | | 717512394-002 | 9J254 | PARAGON MACHINE INC. |
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Techincal Specification:
| THREAD SIZE | 1 19/64-18 | | MATERIAL | ALUMINUM ALLOY 6061 | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/8, T651 FED SPEC SINGLE MATERIAL RESPONSE | | DRIVE TYPE | SLOTTED | | HOLE OR SLOT QUANTITY | 4 | | WIDTH | 0.080 INCHES NOMINAL | | DEPTH | 0.060 INCHES NOMINAL | | DRIVE FACILITY ANGULAR SPACING IN DEG | 90.0 | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | GUIDE DESIGN | THREAD CHAMFER | | GUIDE LOCATION | BOTH EDGES | | SETSCREW NOTCH | NOT PROVIDED |
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