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 5960-01-173-7956
NSN 6110-00-927-5436
NSN 6650-00-443-4292
NSN 5990-01-206-3606
NSN 5945-01-467-9886
NSN 6130-00-984-6252
NSN 5965-01-333-8560
NSN 6105-01-089-6768
NSN 5935-01-235-6606
NSN 6650-01-415-5573
NSN 5905-00-234-6205
NSN 5925-01-534-0344