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National Stock Number:
1240-00-420-9123
Federal Supply Class:
1240
National Item Identification Number:
004209123
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:
| 10541928 | 19200 | US ARMY ARDEC RDECOM | | 1240004209123 | A00AM | E.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE | | 1240004209123 | SCY13 | E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE |
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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 DIAMETER | 1.328 INCHES MINIMUM AND 1.344 INCHES MAXIMUM | | FSC APPLICATION DATA | PERISCOPE,TANK M32,M32C,M35,M36 | | HOLE OR SLOT QUANTITY | 2 | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | OVERALL LENGTH | 0.422 INCHES MINIMUM AND 0.438 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-M-14, TYPE MFE MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | PLASTIC PHENOLIC AND SILICA | | SETSCREW NOTCH | NOT PROVIDED | | SHOULDER LENGTH | 0.313 INCHES MINIMUM AND 0.344 INCHES MAXIMUM | | SHOULDER THREAD SIZE | 1.188 IN.-32UNS-2A | | SPECIAL FEATURES | GROOVE ADJACENT TO SHOULDER THREAD,0.047 IN. W,0.047 IN. DEEP. | | STYLE DESIGNATOR | SHOULDERED | | TAPERED HOLE MINOR DIAMETER | 1.000 INCHES MINIMUM AND 1.005 INCHES MAXIMUM | | TAPER ANGLE IN DEG | 10.5 | | WIDTH | 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM |
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