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 7035-01-160-4423
NSN 6150-00-958-7051
NSN 5905-00-772-2863
NSN 5990-00-948-0440
NSN 4140-01-602-0616
NSN 6650-01-624-9222
NSN 5895-01-025-5688
NSN 5905-01-502-5987
NSN 6220-01-012-4617
NSN 6320-00-025-9910
NSN 6220-00-276-8681
NSN 6110-01-224-3924