Heat treated
A piece of transparent material specifically designed to be placed directly in front of a dial or scale to protect it from foreign matter. It is cut to size and may include a frame. It may have an index line or other marking. See also window, observation; and dial, scale.
Classification: Clock or watch glass; glasses for noncorrective spectagles not optically worked; hollow glass spheres and their segments for the mnfctr ofsuch glasses
NSN 5975-01-509-8983
NSN 5915-00-398-0677
NSN 6240-01-401-5340
NSN 6145-01-413-5516
NSN 5965-00-791-0964
NSN 5915-01-116-1897
NSN 6240-00-603-6662
NSN 5905-01-320-8595
NSN 5965-01-379-6707
NSN 6145-01-157-3488
NSN 5960-01-029-1980
NSN 7035-01-116-6223