4920-00-084-3994 SHADE ASSEMBLY,TEST SET Index 4920-00-084-3997 IRIS MODIFICATION,LENS

National Stock Number:
6650-00-084-3995

Federal Supply Class:
6650

National Item Identification Number:
000843995

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:
974B427H0118323NORTHROP GRUMMAN SYSTEMS CORPORATION


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