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 6135-01-603-3657
NSN 6685-01-436-1315
NSN 6240-01-600-1092
NSN 6135-01-195-5343
NSN 5835-01-426-6573
NSN 5985-00-148-8233
NSN 5895-00-184-0843
NSN 5999-01-391-7152
NSN 5985-01-377-9305
NSN 5950-00-158-5352
NSN 5835-01-296-8146
NSN 5920-01-190-6424