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 5910-01-507-4422
NSN 6110-01-523-7686
NSN 6145-01-191-7357
NSN 6240-00-284-1457
NSN 6220-00-577-3435
NSN 6620-01-453-6764
NSN 5930-01-467-6804
NSN 5996-01-062-8818
NSN 5935-01-361-9200
NSN 5990-01-160-6978
NSN 7035-00-205-1932
NSN 6105-01-380-2144