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 5998-00-433-1224
NSN 5925-01-304-9489
NSN 5925-00-571-0415
NSN 5910-01-094-2674
NSN 5999-00-918-3244
NSN 6685-00-985-5221
NSN 5965-01-499-7318
NSN 6105-01-261-6026
NSN 2925-01-164-9579
NSN 5915-01-430-2228
NSN 5960-01-567-1096
NSN 5925-01-201-1007