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 6685-00-071-4001
NSN 5965-01-064-7496
NSN 6150-01-510-3386
NSN 6240-01-142-2963
NSN 5895-01-090-0567
NSN 5855-01-327-6678
NSN 5855-01-537-1406
NSN 6620-01-497-1746
NSN 6105-00-754-5972
NSN 6135-00-128-1633
NSN 6150-01-603-7262
NSN 5915-01-502-0630