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 5935-01-384-1764
NSN 6220-00-736-2617
NSN 5999-01-110-7610
NSN 6685-00-711-0616
NSN 7035-01-576-9455
NSN 5975-00-501-6640
NSN 6105-01-654-3555
NSN 5999-00-732-4722
NSN 6650-00-957-9985
NSN 5975-01-160-8617
NSN 5965-00-424-9636
NSN 6685-00-974-6966