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National Stock Number:
1240-00-315-0018
Federal Supply Class:
1240
National Item Identification Number:
003150018
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:
| 279510 | 78039 | LEICA INC SURVEYING AND PHOTOGRAMMETRY SYSTEMS DIV | | 279510PC2 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | | BP13863 | 27361 | BURKE PRODUCTS INC |
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Techincal Specification:
| DRIVE FACILITY ANGULAR SPACING IN DEG | 180.0 | | DRIVE TYPE | SLOTTED | | DEPTH | 0.120 INCHES NOMINAL | | FLANGE THREAD SIZE | 3.125 IN.-32 NS-3 | | HOLE OR SLOT QUANTITY | 2 | | HOLE DIAMETER | 2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | OVERALL LENGTH | 1.050 INCHES MINIMUM AND 1.070 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-613, COMP 11, 1/2H FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | COPPER ALLOY 260 OR COPPER ALLOY 262 OR COPPER ALLOY 268 OR COPPER ALLOY 270 OR COPPER ALLOY 272 OR COPPER ALLOY 274 OR COPPER ALLOY 280 OR COPPER ALLOY 330 OR COPPER ALLOY 331 OR COPPER ALLOY 332 OR COPPER ALLOY 335 OR COPPER ALLOY 340 OR COPPER ALLOY 342 OR COPPER ALLOY 344 OR COPPER ALLOY 345 OR COPPER ALLOY 347 OR COPPER ALLOY 348 OR COPPER ALLOY 350 OR COPPER ALLOY 353 OR COPPER ALLOY 356 OR COPPER ALLOY 360 OR COPPER ALLOY 370 | | SETSCREW NOTCH | NOT PROVIDED | | SHOULDER THREAD SIZE | 2.875 IN.-32 NS-3 | | SHOULDER LENGTH | 0.500 INCHES NOMINAL | | STYLE DESIGNATOR | SHOULDERED | | WIDTH | 0.120 INCHES NOMINAL | | SURFACE TREATMENT | NICKEL |
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