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 6240-01-574-7480
NSN 2925-00-591-3269
NSN 2925-01-583-5619
NSN 6620-00-482-1073
NSN 5985-01-357-5417
NSN 5985-01-059-3436
NSN 5925-00-112-3460
NSN 5905-00-393-0646
NSN 5935-01-351-8127
NSN 5999-01-153-7416
NSN 6650-01-105-5608
NSN 6130-01-462-3220