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 5930-00-949-5741
NSN 6220-00-927-6272
NSN 5855-01-334-6594
NSN 6130-01-147-4748
NSN 5910-01-352-5068
NSN 4140-00-813-9557
NSN 6105-01-433-2899
NSN 6135-01-618-8314
NSN 7035-00-445-9657
NSN 5960-01-192-3128
NSN 5925-01-595-9348
NSN 6685-01-212-0445