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 6645-01-334-0782
NSN 7035-00-523-7492
NSN 6220-00-790-7780
NSN 5855-01-499-8692
NSN 4140-01-502-3345
NSN 6650-01-102-5171
NSN 6620-01-168-8450
NSN 2925-00-038-0596
NSN 5855-01-365-4287
NSN 5895-01-272-9740
NSN 5905-01-201-6053
NSN 6320-01-578-6006