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 5945-01-360-1463
NSN 5960-01-452-1907
NSN 5910-01-294-4657
NSN 6110-01-466-9491
NSN 6220-01-557-7198
NSN 5998-01-491-1865
NSN 5990-00-576-4882
NSN 6620-01-633-8443
NSN 5925-00-202-0938
NSN 5945-01-358-0407
NSN 6240-01-431-4563
NSN 5930-01-178-9379