1270-01-171-6930 CELL,OPTICAL ELEMENT Index 1270-01-171-6932 CELL,OPTICAL ELEMENT

National Stock Number:
1270-01-171-6931

Federal Supply Class:
1270

National Item Identification Number:
011716931

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:
1307482804939LOCKHEED MARTIN CORPORATION
1307482858260PROGRAM MANAGER ADVANCED ATTACK HELICOPTER BARCOM AMCPM-AAH


Techincal Specification:
CHAMFER LOCATIONDRIVE END
CHAMFER SIZE0.020 IN.BY 45 DEG
DRIVE TYPESLOTTED DRIVE ON PERIPHERY
ECCENTRIC CONSTRUCTIONNOT PROVIDED
ELEMENT SECURING METHODRETAINER RING
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-46131,TYPE 3,CLASS 1 MIL SPEC SINGLE MATERIAL RESPONSE
MATERIALPLASTIC POLYPHENYLENE OXIDE
OVERALL DIAMETER1.438 INCHES NOMINAL
OVERALL LENGTH0.340 INCHES NOMINAL
SCREW THREAD SERIES DESIGNATORUN
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.320 INCHES
THREAD LOCATIONEXTERNAL
THREAD PITCH DIAMETERS+1.4127 TO 1.4130 INCHES
THREAD SIZE1 7/16-28


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