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 5925-01-400-3002
NSN 5935-01-406-3486
NSN 5999-00-695-0339
NSN 6135-00-917-1894
NSN 6240-01-597-4870
NSN 5835-01-647-0775
NSN 6685-01-185-1976
NSN 6220-01-073-9518
NSN 5930-01-234-9276
NSN 6105-00-963-7213
NSN 5999-00-226-3488
NSN 6320-01-260-7390