No other part numbers with same form, fit, and function found.
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.
Classification: Military equipments not identified by kind
NSN 6610-01-498-4063
NSN 6620-01-266-5545
NSN 5925-00-359-9614
NSN 6320-00-343-1798
NSN 5975-00-737-7684
NSN 5998-00-195-3373
NSN 5945-00-826-3186
NSN 5910-01-422-2324
NSN 5855-01-587-1979
NSN 2925-00-146-0179
NSN 7035-01-202-8172
NSN 5985-00-925-0709