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 5999-00-099-6889
NSN 2925-01-400-2286
NSN 6685-01-641-1535
NSN 5895-01-607-4756
NSN 5998-01-314-2916
NSN 5855-00-174-3482
NSN 5990-01-522-6096
NSN 6685-01-032-0978
NSN 5925-01-322-2046
NSN 5925-01-532-8894
NSN 5975-01-633-8182
NSN 5915-01-290-9344