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 5920-00-357-0260
NSN 6685-01-550-4605
NSN 6240-00-800-4668
NSN 5950-00-169-2428
NSN 5999-01-341-3369
NSN 5999-01-396-2045
NSN 6110-01-029-3403
NSN 5985-01-381-1925
NSN 6220-00-719-7714
NSN 5895-01-399-7914
NSN 5960-01-035-3901
NSN 5920-01-462-4302