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 5975-01-374-6988
NSN 5935-00-285-2767
NSN 6645-01-617-3354
NSN 5985-01-336-7800
NSN 5998-01-185-9704
NSN 6685-01-317-1569
NSN 6240-01-085-1314
NSN 5855-00-631-4565
NSN 5915-01-141-6376
NSN 6320-00-931-4855
NSN 6610-01-250-0237
NSN 6240-01-345-7266