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 6650-01-361-6812
NSN 5999-01-141-6859
NSN 5990-00-994-0555
NSN 5920-01-040-7718
NSN 5990-01-577-2120
NSN 6240-01-542-1448
NSN 4140-01-067-0533
NSN 5960-01-413-3877
NSN 5985-01-660-4323
NSN 5985-00-479-9882
NSN 4140-00-517-7902
NSN 6645-01-383-1083