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 5960-01-429-5897
NSN 5920-00-910-4531
NSN 5998-01-495-1570
NSN 5965-01-195-2168
NSN 6620-01-463-1373
NSN 7035-01-633-9537
NSN 6220-01-538-9366
NSN 5998-01-605-7654
NSN 5960-01-493-3948
NSN 6620-00-278-7313
NSN 5950-01-225-1925
NSN 6130-00-107-0414