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 6645-01-471-3578
NSN 5990-01-254-3197
NSN 5835-00-554-0399
NSN 6135-01-177-3552
NSN 5990-01-395-4194
NSN 6220-01-528-4686
NSN 6110-01-555-6519
NSN 5998-01-297-8100
NSN 5965-01-165-9787
NSN 6240-01-335-2622
NSN 6685-01-244-6813
NSN 5925-01-596-2796