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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:
| HOLE DIAMETER | 0.800 INCHES MINIMUM AND | | 0.810 INCHES MAXIMUM | | OVERALL LENGTH | 0.210 INCHES NOMINAL | | THREAD SIZE | 0.986 IN.-32 NS-2 | | MATERIAL | ALUMINUM ALLOY, WW-T-785, T3, TYPE 2-CANCELED | | SURFACE TREATMENT | ANODIZE | | DRIVE TYPE | SLOTTED | | HOLE OR SLOT QUANTITY | 2 | | WIDTH | 0.060 INCHES NOMINAL | | DEPTH | 0.050 INCHES NOMINAL | | DRIVE FACILITY ANGULAR SPACING IN DEG | 180.0 | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | SETSCREW NOTCH | NOT PROVIDED | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 19200 | | DESIGN CONTROL REFERENCE | 7660506 |
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