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 5935-01-505-2358
NSN 6650-01-633-5160
NSN 6240-00-192-7522
NSN 5999-01-337-3346
NSN 5965-01-340-3723
NSN 4140-00-336-1728
NSN 4140-01-630-3143
NSN 6620-00-900-3986
NSN 5905-01-407-5528
NSN 5998-00-612-2693
NSN 5945-00-548-4727
NSN 5835-01-008-4871