National Item Identification Number
01-393-8749
013938749
5855-01-393-8749
5855013938749
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)
96214
Reference Numbers (Part Numbers)
3002722-1
Required Categories
MATERIAL
SURFACE TREATMENT
DRIVE TYPE
HOLE OR SLOT QUANTITY
DEPTH
DRIVE FAC
Required Description
STEEL
PAINTED AND
PASSIVATED
SLOTTED
4
0.160 INCHES NOMINAL
90.0
0.6875 I