A cylindrical item specifically designed to hold a lens, reticle, or window in an optical system. Includes eccentric cells and/or rings designed to be rotated within the instrument to shift an optical element to a prescribed position.
Classification: Military equipments not identified by kind
NSN 5910-01-348-5767
NSN 6240-01-235-2604
NSN 5985-01-512-6662
NSN 6610-00-131-2533
NSN 5999-00-374-2527
NSN 6220-01-295-8113
NSN 6135-00-643-4843
NSN 6130-01-268-0524
NSN 6240-01-534-2987
NSN 6240-00-170-5302
NSN 5910-01-232-7626
NSN 6610-01-633-4179