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 5975-01-421-3976
NSN 5965-01-388-3492
NSN 5945-00-426-9631
NSN 5950-00-103-0606
NSN 4140-01-546-6771
NSN 6610-01-278-9704
NSN 5855-01-105-7793
NSN 6240-01-098-6410
NSN 6650-01-560-5748
NSN 6150-01-316-6425
NSN 6645-01-243-3138
NSN 5999-00-959-2486