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National Stock Number:
1240-00-518-5479
Federal Supply Class:
1240
National Item Identification Number:
005185479
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:
| 5185479 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| DRIVE FACILITY ANGULAR SPACING IN DEG | 180.0 | | DRIVE TYPE | SLOTTED | | DEPTH | 0.031 INCHES NOMINAL | | FSC APPLICATION DATA | BINOCULAR,FIRE CONTROL | | GUIDE DESIGN | THREAD RELIEF | | GUIDE LOCATION | BOTH EDGES | | HOLE DIAMETER | 0.710 INCHES MINIMUM AND 0.720 INCHES MAXIMUM | | HOLE OR SLOT QUANTITY | 2 | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | OVERALL LENGTH | 0.812 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | WW-T-785, COND T-CANCELED FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | ALUMINUM ALLOY 2024 | | RECESS DEPTH | 0.531 INCHES NOMINAL | | RECESS DIAMETER | 0.764 INCHES MINIMUM AND 0.769 INCHES MAXIMUM | | SETSCREW NOTCH | NOT PROVIDED | | STYLE DESIGNATOR | RECESSED | | WIDTH | 0.031 INCHES NOMINAL | | SURFACE TREATMENT | ANODIZE | | THREAD SIZE | 0.807 IN.-48 NS-3 |
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