National Item Identification Number
00-891-4533
008914533
6650-00-891-4533
6650008914533
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)
19200
8V613
Reference Numbers (Part Numbers)
10547492
10547492
10547492
Required Categories
HOLE DIAMETER
OVERALL LENGTH
THREAD SIZE
MATERIAL
SURFACE TREATMENT
INTERNA
Required Description
0.510 INCHES MINIMUM AND
0.520 INCHES MAXIMUM
0.140 INCHES MINIMUM AND
0.180