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 5895-01-428-9966
NSN 6110-01-555-7155
NSN 6130-01-618-5800
NSN 5975-00-891-8516
NSN 2925-00-152-1825
NSN 2925-01-183-2897
NSN 5996-00-079-8550
NSN 6240-00-269-3346
NSN 5920-01-551-1295
NSN 5920-01-324-8008
NSN 5999-01-542-1346
NSN 6105-00-186-9380