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 5895-01-246-4250
NSN 5950-01-355-7140
NSN 5915-01-551-3109
NSN 5920-01-420-8580
NSN 6110-01-268-0418
NSN 5930-01-450-8232
NSN 5915-01-545-5418
NSN 5835-01-478-9428
NSN 5985-00-533-8179
NSN 6620-01-290-2973
NSN 5935-01-632-9137
NSN 6685-00-596-8765