NSN 1240-01-079-3053

Part Details | OPTICAL ELEMENT RETAINER

1240-01-079-3053 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.

Alternate Parts: 12278948, 1240-01-079-3053, 01-079-3053, 1240010793053, 010793053

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
12JUL 01, 197901-079-305322451 ( RETAINER, OPTICAL ELEMENT )
REFERENCE DRAWINGS & PICTURES

SHOULDERED

Cross Reference | NSN 1240-01-079-3053
Part Number Cage Code Manufacturer
1227894819200US ARMY ARDEC RDECOM
Technical Data | NSN 1240-01-079-3053
Characteristic Specifications
STYLE DESIGNATOR SHOULDERED
SHOULDER DIAMETER2.000 INCHES NOMINAL
SHOULDER LENGTH0.281 INCHES NOMINAL
HOLE DIAMETER1.890 INCHES NOMINAL
OVERALL LENGTH0.375 INCHES NOMINAL
FLANGE DIAMETER2.062 INCHES NOMINAL
MATERIAL1$DAL6061
DRIVE TYPE SLOTTED
HOLE OR SLOT QUANTITY2
WIDTH0.060 INCHES NOMINAL
DEPTH0.060 INCHES NOMINAL
INTERNAL ANNULAR SERRATION NOT PROVIDED
GUIDE DESIGN THREAD CHAMFER
SETSCREW NOTCH PROVIDED
END ITEM IDENTIFICATION2350-01-136-8738;2350-01-087-1095M1A1;1240-01-259-9096 XMI GAS