1240-01-123-4820 CELL,OPTICAL ELEMENT Index 5340-01-123-4822 PLUG,PROTECTIVE,DUST AND MOISTUR

National Stock Number:
1240-01-123-4821

Federal Supply Class:
1240

National Item Identification Number:
011234821

Description:
RETAINER,OPTICAL ELEMENT

Detail:
A cylindrical, externally threaded item having a centrally located hole specifically designed to retain by means of either a raised box (shoulder), or counterbore, countersink, or a similar shaped recess, an optical element such as a lens, reticle, cell, and the like, in optical assemblies. It must have drilled holes or slots to facilitate assembly and disassembly. For items which house the optical element(s), and form the internal or central portions of an optical system, see CELL, OPTICAL ELEMENT. Excludes RING, EXTERNALLY THREADED.


Manufacturer Information:
O10178908UNERTL JOHN OPTICAL CO INC


Techincal Specification:
DRIVE TYPESLOTTED
HOLE DIAMETER1.455 INCHES NOMINAL
HOLE OR SLOT QUANTITY2
OVERALL LENGTH0.500 INCHES NOMINAL
STYLE DESIGNATORSHOULDERED


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