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National Stock Number:
1240-01-188-8029
Federal Supply Class:
1240
National Item Identification Number:
011888029
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:
| 8615982 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| CUBIC MEASURE | 0.0957 CUBIC INCHES | | DEPTH | 0.047 INCHES NOMINAL | | DRIVE TYPE | SLOTTED | | GUIDE DESIGN | THREAD RELIEF | | HOLE DIAMETER | 0.625 INCHES NOMINAL | | HOLE OR SLOT QUANTITY | 1 | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | MATERIAL | STEEL CORROSION RESISTING | | OVERALL LENGTH | 0.125 INCHES NOMINAL | | SETSCREW NOTCH | NOT PROVIDED | | SPECIAL FEATURES | MATERIAL IS PER MIL-T-8506,304,ANNEALED,OR QQ-S-764,TYPE 303 OR 303SE,COND. A; THREAD CHAR. ARE 64UNS-2A | | SURFACE TREATMENT | OXIDE | | THREAD SIZE | AA0.875 | | WIDTH | 0.047 INCHES NOMINAL |
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