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 5835-01-336-1153
NSN 5895-00-305-7549
NSN 5975-01-394-5063
NSN 4140-00-486-6292
NSN 5835-00-368-4182
NSN 6240-00-419-4301
NSN 5855-01-040-3882
NSN 6685-00-781-5238
NSN 5835-00-614-0650
NSN 5855-00-921-6589
NSN 5965-01-023-0809
NSN 5975-00-809-1000