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National Stock Number:
1240-00-115-4456
Federal Supply Class:
1240
National Item Identification Number:
001154456
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:
| 8615895 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| DRIVE TYPE | SLOTTED | | DRIVE FACILITY ANGULAR SPACING IN DEG | 180.0 | | DEPTH | 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM | | FLANGE THREAD SIZE | 2.000 IN.-32UNS-2A | | FSC APPLICATION DATA | TELESCOPE,ELBOW M118 | | HOLE DIAMETER | 1.690 INCHES MINIMUM AND 1.700 INCHES MAXIMUM | | HOLE OR SLOT QUANTITY | 2 | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | OVERALL LENGTH | 0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-764, TYPE 303, COND A-CANCELED FED SPEC 1ST MATERIAL RESPONSE AND QQ-S-764, TYPE 303SE, COND A-CANCELED FED SPEC 2ND MATERIAL RESPONSE | | MATERIAL | STEEL COMP 303 OR STEEL COMP 303SE | | SETSCREW NOTCH | NOT PROVIDED | | SHOULDER DIAMETER | 1.948 INCHES MINIMUM AND 1.953 INCHES MAXIMUM | | SHOULDER LENGTH | 0.312 INCHES NOMINAL | | SPECIAL FEATURES | SHOULDER PROJECTING FROM FLANGE END,1.771 IN. MAX. SHOULDER DIA. AND 0.055 IN. MIN. SHOULDER LG. | | WIDTH | 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM | | STYLE DESIGNATOR | SHOULDERED | | SURFACE TREATMENT | OXIDE |
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