1240-00-132-0900 WEIGHT,COUNTERBALANCE Index 3040-00-132-0906 COLLAR,SHAFT

National Stock Number:
1240-00-132-0902

Federal Supply Class:
1240

National Item Identification Number:
001320902

Description:
CELL ASSEMBLY,OPTICAL INSTRUMENT

Detail:
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.


Manufacturer Information:
1055597219200US ARMY ARDEC RDECOM


Techincal Specification:
ECCENTRIC CONSTRUCTIONNOT PROVIDED
ACCESSORY COMPONENTS AND QUANTITYGASKET 1,RETAINER 2
CELL CONTROLLING AGENCYFRANKFORD ARSENAL
CELL IDENTIFYING NUMBER10555973 PART NO.
FSC APPLICATION DATACOLLIMATOR,INFINITY,AIMING REFERENCE
OPTICAL ELEMENT CONTROLLING AGENCYFRANKFORD ARSENAL
OPTICAL ELEMENT IDENTIFYING NUMBER8644284 PART NO. AND 10555970 PART NO.
OPTICAL ELEMENT QUANTITY2
OPTICAL ELEMENT TYPECOMPOUND LENS AND OPTICAL GLASS WINDOW
OVERALL DIAMETER3.490 INCHES MINIMUM AND 3.500 INCHES MAXIMUM
OVERALL LENGTH3.620 INCHES MINIMUM AND 3.630 INCHES MAXIMUM
SCREW THREAD SERIES DESIGNATORUNS
SPECIAL FEATURESCELL SURFACE TREATMENT MIL-A-8625,TYPE 2,CLASS 2,DYED BLACK. CHAMFER 0.031 IN. BY 45 DEG BOTH ENDS. TWO SETS OF FOUR EACH 0.156 DIA. HOLES ON PERIPHERY,EQUALLY SPACED. TWO NO. 6-32UNC-2B THD HOLES ON PERIPHERY. SPACED 90 DEG APART,
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.815 INCHES AND 0.347 INCHES
THREAD LOCATIONINTERNAL
THREAD SIZE3.187-24


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