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 5990-00-050-7693
NSN 7035-01-593-5694
NSN 6145-01-566-7295
NSN 5925-01-153-0144
NSN 6645-01-500-0827
NSN 2925-00-152-1825
NSN 5965-01-501-5638
NSN 6620-00-869-9307
NSN 6145-00-917-6560
NSN 7035-01-417-6261
NSN 6220-00-725-6893
NSN 5920-00-922-8493