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 5920-01-243-8245
NSN 6240-01-502-7883
NSN 6150-01-068-3787
NSN 4140-00-823-9194
NSN 5835-01-163-4215
NSN 6610-01-245-8015
NSN 6105-00-426-5430
NSN 6220-00-909-2580
NSN 5910-01-357-6484
NSN 6145-01-451-4304
NSN 5985-00-023-9324
NSN 4140-00-282-9759