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 4140-00-900-6102
NSN 5999-01-025-7490
NSN 6620-01-363-4792
NSN 5895-00-699-5500
NSN 5965-01-112-8758
NSN 5965-00-843-9957
NSN 5999-00-431-9230
NSN 6130-01-367-2201
NSN 5999-01-036-4141
NSN 6150-00-678-0075
NSN 5985-01-541-4797
NSN 6150-01-300-8683