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 6650-01-096-6803
NSN 5920-00-399-7760
NSN 6110-01-352-4763
NSN 6105-01-147-1495
NSN 2925-01-069-5324
NSN 2925-01-336-2820
NSN 6685-01-503-6537
NSN 6135-00-985-7845
NSN 6650-01-378-6868
NSN 4140-01-571-7913
NSN 6685-01-025-6765
NSN 6620-01-149-2842