6650-00-768-8774 LENS,OPTICAL INSTRUMENT Index 6650-00-768-8777 LENS,OPTICAL INSTRUMENT

National Stock Number:
1240-00-768-8775

Federal Supply Class:
1240

National Item Identification Number:
007688775

Description:
CELL,OPTICAL ELEMENT

Detail:
A CYLINDRICAL ITEM SPECIFICALLY DESIGNED TO HOLD A LENS, RETICLE, OR WINDOW IN AN OPTICAL SYSTEM. INCLUDES ECCENTRIC CELLS AND/OR RINGS DESIGNED TO BE ROTATED WITHIN THE INSTRUMENT TO SHIFT AN OPTICAL ELEMENT TO A PRESCRIBED POSITION.


Manufacturer Information:
1240007688775A00AME.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE
768877519200US ARMY ARDEC RDECOM


Techincal Specification:
DRIVE TYPEDRILLED FACE
ECCENTRIC CONSTRUCTIONNOT PROVIDED
ELEMENT SECURING METHODTHREADED RING
CHAMFER LOCATIONOPPOSITE DRIVE END AND DRIVE END
CHAMFER SIZE0.015 IN. BY 45 DEG; 0.020 IN. BY45 DEG
FSC APPLICATION DATAPERISCOPE,TANK
OVERALL DIAMETER1.572 INCHES NOMINAL
OVERALL LENGTH1.441 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/3, T3 FED SPEC SINGLE MATERIAL RESPONSE
MATERIALALUMINUM ALLOY 2011
SCREW THREAD SERIES DESIGNATORUNS
SPECIAL FEATURESCHAMFER 0.015 IN. BY 45 DEG ON BOTH ENDS OF 1.572 IN.-48 THREAD. INTERNAL FLANGE ON DRIVE END,0.060 IN. FLANGE THICKNESS,0.800 IN. HOLE DIA,30 DEG HOLE CHAMFER ANGLE,0.869 IN. HOLE CHAMFER DIA.
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TYPE 1,CLASS 2,BLACK MIL SPEC SINGLE TREATMENT RESPONSE
SURFACE TREATMENTANODIZE
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LOCATIONEXTERNAL
THREAD LENGTH0.182 INCHES AND 0.791 INCHES
THREAD SIZE1.430 IN. -48 AND 1.572 IN. -48


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