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 5965-01-367-2595
NSN 6685-01-515-6452
NSN 6150-01-588-5631
NSN 5965-01-486-1222
NSN 5998-00-294-2438
NSN 6240-01-294-8997
NSN 6620-00-891-8584
NSN 5965-00-246-5612
NSN 5910-00-814-3770
NSN 6220-01-117-7619
NSN 5925-00-908-2843
NSN 6645-01-578-6815