NSN 1240-01-126-8569

Part Details | OPTICAL ELEMENT RETAINER

1240-01-126-8569 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: 13040140, 13040140, 1240-01-126-8569, 01-126-8569, 1240011268569, 011268569

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
12FEB 18, 198201-126-856922451 ( RETAINER, OPTICAL ELEMENT )
REFERENCE DRAWINGS & PICTURES

SHOULDERED

Cross Reference | NSN 1240-01-126-8569
Part Number Cage Code Manufacturer
1304014082577RAYTHEON COMPANYDBA RAYTHEON
1304014018876U S ARMY AVIATION AND MISSILECOMMAND
Technical Data | NSN 1240-01-126-8569
Characteristic Specifications
STYLE DESIGNATOR SHOULDERED
SHOULDER DIAMETER1.247 INCHES NOMINAL
SHOULDER LENGTH0.040 INCHES NOMINAL
HOLE DIAMETER1.125 INCHES NOMINAL
OVERALL LENGTH0.160 INCHES NOMINAL
FLANGE THREAD SIZE1.375 IN.-32
MATERIAL DOCUMENT AND CLASSIFICATIONWW-T-700 TO 6, ALLOY 6061, T6 FED SPEC SINGLE MATERIAL RESPONSE
MATERIAL ALUMINUM ALLOY 6061
SURFACE TREATMENT ANODIZE
DRIVE TYPE SLOTTED
HOLE OR SLOT QUANTITY4
WIDTH0.093 INCHES NOMINAL
DEPTH0.060 INCHES NOMINAL
DRIVE FACILITY ANGULAR SPACING IN DEG90.0
RADIUS FROM GEOMETRIC AXIS TO HOLE CENTER0.614 INCHES NOMINAL
INTERNAL ANNULAR SERRATION NOT PROVIDED
GUIDE DESIGN THREAD RELIEF
SETSCREW NOTCH NOT PROVIDED