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 5905-00-521-1018
NSN 5915-01-167-9072
NSN 6135-01-290-6487
NSN 5985-00-462-5792
NSN 6110-00-753-7677
NSN 6110-01-514-1778
NSN 6650-01-619-9986
NSN 6145-00-184-1110
NSN 6320-01-422-1212
NSN 5915-01-562-6856
NSN 6135-01-100-3593
NSN 7035-01-204-7481