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National Stock Number:
1240-01-046-4259
Federal Supply Class:
1240
National Item Identification Number:
010464259
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:
| 11741185 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| DRIVE TYPE | SLOTTED | | HOLE CHAMFER ANGLE IN DEG | 45.0 | | HOLE OR SLOT QUANTITY | 4 | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | OVERALL LENGTH | 0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | WW-T-700/3, TEMPER T3 THRU T6 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-200/3, TEMPER T3 THRU T6 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/6, TEMPER T3 THRU T6 FED SPEC 1ST MATERIAL RESPONSE OR WW-T-700/6, TEMPER T3 THRU T6 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-200/8, TEMPER T3 THRU T6 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-225/8, TEMPER T3 THRU T6 FED SPEC 2ND MATERIAL RESPONSE | | MATERIAL | ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 6061 | | RECESS DEPTH | 0.220 INCHES NOMINAL | | RECESS DIAMETER | 0.990 INCHES MINIMUM AND 1.000 INCHES MAXIMUM | | SETSCREW NOTCH | NOT PROVIDED | | STYLE DESIGNATOR | RECESSED | | THREAD SIZE | AA1.875 |
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