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 5915-00-350-8196
NSN 6320-00-004-9158
NSN 6105-01-455-6201
NSN 5895-00-740-6233
NSN 6685-00-659-7831
NSN 6135-01-084-1609
NSN 5935-00-562-4298
NSN 5920-01-418-1821
NSN 4140-01-482-1178
NSN 6110-01-146-5796
NSN 6220-00-095-3687
NSN 5920-01-545-5160