6650-01-108-4983 LENS,OPTICAL INSTRUMENT Index 1240-01-108-4985 CELL ASSEMBLY,OPTICAL INSTRUMENT

National Stock Number:
1240-01-108-4984

Federal Supply Class:
1240

National Item Identification Number:
011084984

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:
862032919200US ARMY ARDEC RDECOM


Techincal Specification:
CHAMFER LOCATIONBOTH ENDS
CHAMFER SIZE0.015 IN. BY 45 DEG;0.015 IN. BY 45 DEG
DRIVE TYPESLOTTED FACE
ECCENTRIC CONSTRUCTIONNOT PROVIDED
ELEMENT SECURING METHODTHREADED RING
MATERIAL DOCUMENT AND CLASSIFICATIONWW-T-700/3, ALLOY 2024, T3 FED SPEC 1ST MATERIAL RESPONSE AND QQ-B-626, COMP 22 FED SPEC 2ND MATERIAL RESPONSE
MATERIALALUMINUM ALLOY 2024 AND COPPER ALLOY 360
SCREW THREAD SERIES DESIGNATORUNS
THREAD CLASS2B AND 2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.266 INCHES AND 0.475 INCHES
THREAD LOCATIONINTERNAL AND EXTERNAL
THREAD PITCH DIAMETERS+1.9797 TO 1.9851 INCHES AND +2.2866 TO 2.7909 INCHES
THREAD SIZE2-32 AND 2 5/16-32


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