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 5960-00-448-0417
NSN 6220-01-315-0830
NSN 5999-01-007-2415
NSN 6105-01-530-7969
NSN 6685-01-394-8070
NSN 5965-01-542-8510
NSN 2925-01-298-2674
NSN 6220-00-079-4840
NSN 6320-01-338-6006
NSN 5905-01-510-9153
NSN 6645-01-054-3969
NSN 4140-01-640-6637