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 5855-01-441-1392
NSN 5996-01-297-1564
NSN 6150-00-824-4437
NSN 6130-01-526-3419
NSN 5935-01-600-9712
NSN 6105-01-509-7399
NSN 6645-00-520-8437
NSN 6645-01-063-8243
NSN 6150-01-255-8183
NSN 5935-00-118-6233
NSN 5905-01-547-8644
NSN 6110-01-261-1560