6650-01-556-1929 VISOR,PERISCOPE Index 6650-01-556-5766 HOLDER,MIRROR

National Stock Number:
6650-01-556-9595

Federal Supply Class:
6650

National Item Identification Number:
015569595

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:
13582578-218876U S ARMY AVIATION AND MISSILE COMMAND


Techincal Specification:
DEPTH3.375 INCHES NOMINAL
DIAMETER3.750 INCHES NOMINAL
MATERIALALUMINUM
PART NAME ASSIGNED BY CONTROLLING AGENCYBAFFLE LASER SHROUD ASSEMBLY
SURFACE TREATMENTANODIZE
THREAD SIZE3 3/8-16


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