Helical gear drive
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 6610-00-056-5889
NSN 5925-01-014-1539
NSN 5985-01-324-8489
NSN 6150-01-589-5392
NSN 5930-00-407-7036
NSN 5935-01-188-1963
NSN 6620-01-519-2628
NSN 5910-01-366-1898
NSN 5910-01-319-8411
NSN 6685-01-317-3659
NSN 6645-00-634-9317
NSN 5950-00-410-6406