National Item Identification Number
01-167-4799
011674799
6650-01-167-4799
6650011674799
National Stock Number
Item Name
RETAINER,OPTICAL ELEMENT
Federal Supply Class
6650
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)
18876
82577
Reference Numbers (Part Numbers)
13142460
13142460
Required Categories
STYLE DESIGNATOR
HOLE DIAMETER
FLANGE DIAMETER
MATERIAL
DRIVE TYPE
INTERNAL
Required Description
F4 SHOULDERED
0.790 INCHES NOMINAL
0.850 INCHES NOMINAL
ALUMINUM ALLOY
KNURL