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 5905-01-386-5846
NSN 5895-01-432-2464
NSN 5910-01-167-8593
NSN 6220-00-541-8515
NSN 5998-01-253-9290
NSN 5910-00-518-1477
NSN 5905-01-413-9697
NSN 6130-01-413-2335
NSN 5965-00-689-1545
NSN 4140-00-851-2552
NSN 6685-01-464-6651
NSN 5930-01-255-6906