1560-01-329-3071 FRAME,ACCESS HOLE Index 5340-01-329-3073 STANDOFF,THREADED,SPACING

National Stock Number:
1240-01-329-3072

Federal Supply Class:
1240

National Item Identification Number:
013293072

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:
861595919200US ARMY ARDEC RDECOM


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