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 5975-01-261-2995
NSN 6150-00-223-2596
NSN 5855-01-443-2509
NSN 6240-00-957-5724
NSN 6150-01-352-5926
NSN 5990-01-432-4984
NSN 6220-01-367-3658
NSN 5999-01-641-3384
NSN 5925-01-513-9924
NSN 5920-01-293-9921
NSN 5895-00-039-7257
NSN 6320-00-371-8335