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 6130-01-658-1303
NSN 6650-01-074-6724
NSN 5965-01-051-0126
NSN 5915-01-044-5260
NSN 5910-00-127-3129
NSN 5935-00-577-8515
NSN 5915-01-281-8559
NSN 6150-01-399-4887
NSN 6110-01-268-8158
NSN 5835-01-515-6537
NSN 6130-00-466-8939
NSN 5950-01-223-1125