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National Stock Number:
1240-00-913-7995
Federal Supply Class:
1240
National Item Identification Number:
009137995
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:
| 8215944 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| DRIVE TYPE | SLOTTED | | DRIVE FACILITY ANGULAR SPACING IN DEG | 90.0 | | DEPTH | 0.047 INCHES NOMINAL | | FLANGE DIAMETER | 2.875 INCHES NOMINAL | | HOLE OR SLOT QUANTITY | 4 | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | OVERALL LENGTH | 0.469 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-M-14, TYPE SDG MIL SPEC ALL MATERIAL RESPONSES | | MATERIAL | PLASTIC DIALLYL PHTHALATE AND GLASS FIBER | | SETSCREW NOTCH | NOT PROVIDED | | SHOULDER LENGTH | 0.313 INCHES NOMINAL | | SHOULDER THREAD SIZE | 2.750 IN.-32 UNS-2A | | STYLE DESIGNATOR | SHOULDERED | | TAPERED HOLE MINOR DIAMETER | 2.133 INCHES NOMINAL | | TAPER ANGLE IN DEG | 45.0 | | WIDTH | 0.062 INCHES NOMINAL |
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