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 5935-01-600-0663
NSN 5915-00-940-7439
NSN 5945-00-547-7995
NSN 5996-00-115-1188
NSN 5925-01-439-8013
NSN 5895-00-177-3610
NSN 5895-01-142-0937
NSN 5935-01-367-3109
NSN 5930-00-888-9865
NSN 6620-01-143-9111
NSN 6620-00-220-2157
NSN 5975-00-485-5829