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 6145-01-470-3933
NSN 6650-00-476-9450
NSN 5835-01-158-6878
NSN 5895-01-465-4942
NSN 6145-00-628-7088
NSN 5965-00-021-2540
NSN 6610-01-462-3508
NSN 5950-00-793-9807
NSN 5895-00-844-0149
NSN 6135-01-355-8917
NSN 6620-00-155-2608
NSN 6645-01-359-5769