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 5895-01-386-0135
NSN 5855-01-337-0245
NSN 5910-01-053-6833
NSN 5960-00-906-6087
NSN 5960-01-185-4216
NSN 5915-01-061-4415
NSN 5990-01-178-5091
NSN 6105-00-316-5098
NSN 7035-00-870-0290
NSN 6135-00-044-3860
NSN 5905-00-825-4570
NSN 5835-00-729-9305