National Item Identification Number
01-039-2857
010392857
5855-01-039-2857
5855010392857
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
2S308
Reference Numbers (Part Numbers)
SM-D-850409
SM-D-850409
SMD850409
Required Categories
STYLE DESIGNATOR
SHOULDER LENGTH
HOLE DIAMETER
OVERALL LENGTH
FLANGE THREAD
Required Description
F6 SHOULDERED
0.080 INCHES MINIMUM AND
0.090 INCHES MAXIMUM
1.437 INCHES MINI