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 5998-00-299-2740
NSN 6685-01-156-8030
NSN 5855-01-585-4125
NSN 6320-01-271-0247
NSN 5935-00-857-2064
NSN 5930-00-171-8867
NSN 6145-00-862-7069
NSN 5998-01-288-0748
NSN 5965-01-479-9155
NSN 5895-01-470-5790
NSN 5960-00-953-5811
NSN 5920-01-278-0600