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National Stock Number:
1240-00-864-6541
Federal Supply Class:
1240
National Item Identification Number:
008646541
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:
| 7660506 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| DEPTH | 0.050 INCHES NOMINAL | | DRIVE FACILITY ANGULAR SPACING IN DEG | 180.0 | | DRIVE TYPE | SLOTTED | | HOLE DIAMETER | 0.800 INCHES MINIMUM AND 0.810 INCHES MAXIMUM | | HOLE OR SLOT QUANTITY | 2 | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | MATERIAL DOCUMENT AND CLASSIFICATION | WW-T-785, T3, TYPE 2-CANCELED FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | ALUMINUM ALLOY 2024 | | OVERALL LENGTH | 0.210 INCHES NOMINAL | | SETSCREW NOTCH | NOT PROVIDED | | SURFACE TREATMENT | ANODIZE | | THREAD SIZE | 0.986 IN.-32 NS-2 | | WIDTH | 0.060 INCHES NOMINAL |
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