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 6105-00-910-4499
NSN 6645-00-754-4108
NSN 5895-00-804-6276
NSN 5999-01-220-1231
NSN 5835-00-484-1529
NSN 5935-01-245-3449
NSN 5905-01-534-5964
NSN 5935-00-368-4074
NSN 5835-01-227-2318
NSN 4140-00-210-0552
NSN 6620-01-515-5378
NSN 6135-00-837-5331