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 5835-00-165-3069
NSN 5920-01-191-5303
NSN 5930-00-122-5267
NSN 5910-00-104-5953
NSN 6135-00-754-8191
NSN 6620-01-342-5953
NSN 6220-00-227-0528
NSN 5910-01-557-8323
NSN 5985-01-147-3900
NSN 5965-01-501-5638
NSN 7035-00-179-3924
NSN 6320-01-570-8814