NSN 1240-00-768-8717

Part Details | OPTICAL ELEMENT RETAINING RING

1240-00-768-8717 A cylindrical item having an internally flanged diameter designed to retain a lens or window in the objective end, or a diopter scale at the viewing end of an optical instrument. It may have one or more of the following characteristics: internal thread or machined for a press fit, method of securing, and/or knurled periphery. For externally threaded items, see RETAINER, OPTICAL ELEMENT. Excludes CELL, OPTICAL ELEMENT; NUT, PLAIN KNURLED; NUT, PLAIN ROUND; and RING, RETAINING.

Alternate Parts: 1240007688717, 7688717, 7688717, 1240-00-768-8717, 00-768-8717, 1240007688717, 007688717

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
12JAN 01, 196200-768-871722585 ( RING, RETAINING, OPTICAL ELEMENT )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-00-768-8717
Part Number Cage Code Manufacturer
1240007688717A00AME.C.A ETABLISSEMENT CENTRALDESAPPROVISIONNEMENTS DES FORCES
768871750242ORION INSTRUMENT & TOOL MFG CORP
768871719200US ARMY ARDEC RDECOM
Technical Data | NSN 1240-00-768-8717
Characteristic Specifications
THREAD LOCATION INTERNAL
THREAD SIZE1.203 IN.-48
SCREW THREAD SERIES DESIGNATOR UNS
THREAD CLASS2A
THREAD LENGTH0.296 INCHES
THREAD DIRECTION RIGHT-HAND
OVERALL LENGTH0.399 INCHES NOMINAL
OUTSIDE DIAMETER1.310 INCHES MINIMUM AND 1.315 INCHES MAXIMUM
INTERNAL FLANGE THICKNESS0.036 INCHES MINIMUM AND 0.044 INCHES MAXIMUM
INNER GROOVE WIDTH0.056 INCHES MINIMUM AND 0.070 INCHES MAXIMUM
GROOVE DIAMETER1.207 INCHES MINIMUM AND 1.217 INCHES MAXIMUM
APERTURE DIAMETER0.947 INCHES MINIMUM AND 0.950 INCHES MAXIMUM
GROOVE LOCATION ADJACENT TO INTERNAL FLANGE
MOUNTING CONFIGURATIONINTERNAL THREAD
SPECIAL FEATURESCHAMFER 0.020 IN. BY 45 DEG ON ID OF FLANGE END. ONE SLOT 0.062 IN. WIDE,0.060 IN. DEEP BY 45 DEG ON FACE OF FLANGE END.
FSC APPLICATION DATAPERISCOPE,TANK