NSN 1240-00-336-4863

Part Details | OPTICAL ELEMENT RETAINER

1240-00-336-4863 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: 176680PC7, 176680PC7, 1240-00-336-4863, 00-336-4863, 1240003364863, 003364863

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
12JAN 01, 196300-336-486322451 ( RETAINER, OPTICAL ELEMENT )
REFERENCE DRAWINGS & PICTURES

SHOULDERED

Cross Reference | NSN 1240-00-336-4863
Part Number Cage Code Manufacturer
176680PC74L762BAUSCH AND LOMB INCOPTICAL SYSTEMS DIV
176680PC710001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
Technical Data | NSN 1240-00-336-4863
Characteristic Specifications
STYLE DESIGNATOR SHOULDERED
SHOULDER LENGTH0.172 INCHES NOMINAL
HOLE DIAMETER1.812 INCHES NOMINAL
OVERALL LENGTH0.250 INCHES NOMINAL
FLANGE DIAMETER2.196 INCHES NOMINAL
SHOULDER THREAD SIZE1.993 IN.-36
MATERIAL STEEL
DRIVE TYPE SLOTTED
HOLE OR SLOT QUANTITY2
WIDTH0.062 INCHES NOMINAL
DEPTH0.062 INCHES NOMINAL
DRIVE FACILITY ANGULAR SPACING IN DEG180.0
INTERNAL ANNULAR SERRATION NOT PROVIDED
GUIDE DESIGN THREAD RELIEF
GUIDE LOCATION EDGE OPPOSITE DRIVE EDGE
SETSCREW NOTCH NOT PROVIDED
END ITEM IDENTIFICATIONRANGEFINDER MK42