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 5985-01-159-4532
NSN 5915-00-574-5400
NSN 5905-01-412-7738
NSN 5855-01-240-8787
NSN 6220-01-352-2970
NSN 6685-01-108-5782
NSN 6240-00-677-0305
NSN 6145-01-634-0388
NSN 5905-00-059-3327
NSN 5965-00-928-6983
NSN 6135-01-119-0720
NSN 2925-00-225-5386