National Item Identification Number
01-158-6577
011586577
6650-01-158-6577
6650011586577
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)
72314
21856
Reference Numbers (Part Numbers)
1291-566
2123
Required Categories
STYLE DESIGNATOR
HOLE DIAMETER
OVERALL LENGTH
RECESS DIAMETER
RECESS DEPTH;
Required Description
F1 RECESSED
0.551 INCHES NOMINAL
0.067 INCHES NOMINAL
0.638 INCHES NOMINAL
0