NSN 1240-00-257-2759

Part Details | OPTICAL INSTRUMENT CELL ASSEMBLY

1240-00-257-2759 An item consisting of a CELL, OPTICAL ELEMENT in which is secured one or more optical elements, such as lenses, reticles, filters, windows, and the like. May include retaining rings, spacers, and/or separators. For items with focusing facilities and/or a diopter scale, see EYEPIECE ASSEMBLY, OPTICAL INSTRUMENT.

Alternate Parts: 11730292, 1240-00-257-2759, 00-257-2759, 1240002572759, 002572759

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
12JUN 18, 197300-257-275922197 ( CELL ASSEMBLY, OPTICAL INSTRUMENT )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-00-257-2759
Part Number Cage Code Manufacturer
1173029219200US ARMY ARDEC RDECOM
Technical Data | NSN 1240-00-257-2759
Characteristic Specifications
MATERIAL4$DAL6061$DAL6062
MATERIAL DOCUMENT AND CLASSIFICATIONAQQ-A-200 TO 3$AQQ-A-225 TO 6$AQQ-A-200 TO 8$AQQ-A-225 TO 8, ALLOY 6061, T6 1ST MATERIAL RESPONSE
THREAD LOCATION INTERNAL
THREAD SIZE2.000-32
SCREW THREAD SERIES DESIGNATOR UNS
THREAD CLASS2B
THREAD LENGTH0.138 INCHES
THREAD DIRECTION RIGHT-HAND
ECCENTRIC CONSTRUCTION NOT PROVIDED
CELL CONTROLLING AGENCYFRANKFORD ARSENAL
CELL IDENTIFYING NUMBER11730296 PART NO.
OPTICAL ELEMENT QUANTITY1
OPTICAL ELEMENT TYPE RETICLE
OPTICAL ELEMENT CONTROLLING AGENCYFRANKFORD ARSENAL
OPTICAL ELEMENT IDENTIFYING NUMBER11730297 PART NO.
ACCESSORY COMPONENTS AND QUANTITYRETAINER,OPTICAL ELEMENT 1,SPACER,RING 1,LIGHT SOURCE,POTTED 1
OVERALL LENGTH0.430 INCHES MINIMUM AND 0.440 INCHES MAXIMUM
OVERALL DIAMETER2.297 INCHES MINIMUM AND 2.312 INCHES MAXIMUM
SPECIAL FEATURESRADIOACTIVE MATERIAL RADIONUCLIDES DATA TRITIUM,H3 AS GAS,1.400 CURIES MAX.; FLANGE 2.812IN. DIA W/2 FLAT SIDES ON UNTHREADED END,2.310IN. WIDEACROSS FLATS,TWO CURVED SLOTS 0.219IN. O/A LG,0.141IN. O/A W,SPACED 180 DEG APART,AND FOUR 0.112-40UNC-2B THREADED HOLES ON 1.800IN. VERTICAL AND HORIZONTAL CENTERS LOCATED ON FLANGE
CRITICALITY CODE JUSTIFICATIONFEAT
FSC APPLICATION DATATELESCOPE,ELBOW