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 7035-01-012-2259
NSN 6650-01-102-4453
NSN 6110-01-633-9660
NSN 4140-01-314-1979
NSN 5935-01-605-2726
NSN 5895-01-573-8209
NSN 5999-00-283-8722
NSN 7035-00-929-0363
NSN 6240-00-393-1161
NSN 5925-01-104-4893
NSN 6650-01-428-2251
NSN 6685-01-529-3203