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 5990-00-432-0649
NSN 6135-01-651-7287
NSN 5910-00-935-3517
NSN 6135-01-416-3181
NSN 5920-00-602-1358
NSN 6240-00-441-7962
NSN 2925-00-453-4100
NSN 5895-01-019-0935
NSN 6620-00-417-6285
NSN 5945-01-585-3705
NSN 6105-01-020-3558
NSN 5930-01-076-0412