National Item Identification Number
01-039-2851
010392851
5855-01-039-2851
5855010392851
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)
04YE2
20723
80063
Reference Numbers (Part Numbers)
SM-D-850323
SM-D-850323
SM-D-850323
Required Categories
STYLE DESIGNATOR
SHOULDER LENGTH
TAPERED HOLE MINOR DIAMETER
TAPER ANGLE IN D
Required Description
F5 SHOULDERED
0.365 INCHES MINIMUM AND
0.375 INCHES MAXIMUM
3.120 INCHES MINI