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 5965-01-198-3256
NSN 5990-01-116-2181
NSN 5910-00-170-7170
NSN 6145-01-220-6421
NSN 5975-01-322-8183
NSN 6620-01-104-5758
NSN 5945-00-099-9857
NSN 5935-00-042-4671
NSN 5895-01-023-7893
NSN 6105-01-214-8870
NSN 5855-00-688-9954
NSN 6650-01-484-7095