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 6150-01-245-4310
NSN 6145-00-348-4320
NSN 6110-00-476-0533
NSN 6110-01-191-7742
NSN 6105-01-554-1737
NSN 6650-00-984-5340
NSN 6610-01-069-1156
NSN 5905-01-435-5505
NSN 6685-00-554-3825
NSN 5915-01-108-0462
NSN 6130-01-055-8951
NSN 6240-01-378-2213