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 5998-00-919-9727
NSN 5925-01-004-7609
NSN 5925-00-800-0022
NSN 7035-01-611-5506
NSN 6610-00-285-5366
NSN 5975-00-681-5900
NSN 6150-01-612-6757
NSN 6135-00-583-3966
NSN 6220-01-484-7931
NSN 5930-01-615-7194
NSN 5910-01-364-8381
NSN 5975-01-152-2910