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 6645-00-700-4892
NSN 6220-00-003-8992
NSN 6620-01-052-2773
NSN 6650-01-537-5388
NSN 6685-01-317-4639
NSN 5975-01-322-1682
NSN 5905-00-249-9493
NSN 5975-01-170-5287
NSN 6240-00-269-3346
NSN 5920-01-069-2992
NSN 5990-00-557-7443
NSN 5895-01-023-6150