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 6110-00-737-8548
NSN 6150-01-534-7601
NSN 6220-00-272-7497
NSN 6110-01-416-6743
NSN 6220-01-519-9305
NSN 7035-00-150-2379
NSN 5975-01-571-7644
NSN 6105-01-173-9876
NSN 7035-01-127-9019
NSN 5835-01-504-0837
NSN 6130-00-832-6692
NSN 6320-00-676-9387