National Item Identification Number
01-169-1706
011691706
5855-01-169-1706
5855011691706
National Stock Number
Item Name
RETAINER,OPTICAL ELEMENT
Federal Supply Class
5855
Description
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.
Commercial and Government Entity Code (Supplier Data)
80063
Reference Numbers (Part Numbers)
SM-C-850136
Required Categories
STYLE DESIGNATOR
SHOULDER DIAMETER
SHOULDER LENGTH
OVERALL LENGTH
FLANGE DIA
Required Description
F4 SHOULDERED
1.631 INCHES NOMINAL
0.300 INCHES MINIMUM AND
0.320 INCHES MAXI