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 6110-01-580-5446
NSN 2925-00-773-7217
NSN 6135-01-322-4655
NSN 6130-00-163-8371
NSN 5945-01-159-2593
NSN 6620-01-606-8964
NSN 5925-01-050-9032
NSN 6130-01-123-9041
NSN 5999-01-567-2553
NSN 5915-01-111-9052
NSN 5925-01-604-9427
NSN 5915-00-306-4105