National Item Identification Number
01-304-4254
013044254
6650-01-304-4254
6650013044254
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)
96214
Reference Numbers (Part Numbers)
1979771-1
Required Categories
STYLE DESIGNATOR
SHOULDER DIAMETER
SHOULDER LENGTH
TAPERED HOLE MINOR DIAMETE
Required Description
F5 SHOULDERED
4.700 INCHES NOMINAL
2.822 INCHES NOMINAL
3.100 INCHES NOMINAL;