National Item Identification Number
01-255-1643
012551643
6650-01-255-1643
6650012551643
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)
2001590-1
Required Categories
STYLE DESIGNATOR
HOLE DIAMETER
OVERALL LENGTH
RECESS ANGLE IN DEG
RECESS DEP
Required Description
F3 RECESSED
0.180 INCHES NOMINAL
0.140 INCHES NOMINAL
45.0
0.120 INCHES NOMI