NSN 1240-00-208-7561

Part Details | OPTICAL ELEMENT RETAINER

1240-00-208-7561 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: 11738900, 1240-00-208-7561, 00-208-7561, 1240002087561, 002087561

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
12APR 08, 197300-208-756122451 ( RETAINER, OPTICAL ELEMENT )
REFERENCE DRAWINGS & PICTURES

SHOULDERED

Cross Reference | NSN 1240-00-208-7561
Part Number Cage Code Manufacturer
1173890019200US ARMY ARDEC RDECOM
Technical Data | NSN 1240-00-208-7561
Characteristic Specifications
STYLE DESIGNATOR SHOULDERED
SHOULDER DIAMETER1.360 INCHES MINIMUM AND 1.370 INCHES MAXIMUM
SHOULDER LENGTH0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM
HOLE DIAMETER1.254 INCHES MINIMUM AND 1.258 INCHES MAXIMUM
OVERALL LENGTH0.210 INCHES MINIMUM AND 0.230 INCHES MAXIMUM
FLANGE THREAD SIZE1.500 IN.-32UNS-2A
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5643 ASSN STD SINGLE MATERIAL RESPONSE
MATERIAL STEEL COMP 630
SURFACE TREATMENT PASSIVATE
DRIVE TYPE SLOTTED
HOLE OR SLOT QUANTITY4
WIDTH0.060 INCHES MINIMUM AND 0.080 INCHES MAXIMUM
DEPTH0.070 INCHES MINIMUM AND 0.090 INCHES MAXIMUM
DRIVE FACILITY ANGULAR SPACING IN DEG90.0
INTERNAL ANNULAR SERRATION NOT PROVIDED
GUIDE DESIGN THREAD CHAMFER
GUIDE LOCATION BOTH EDGES
SETSCREW NOTCH NOT PROVIDED
SUPPLEMENTARY FEATURESHEAT TREATMENT,MIL-H-6875,COND H925
FSC APPLICATION DATARECEIVER-TRANSMITTER,LASER