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 5910-00-045-3051
NSN 6220-00-827-7423
NSN 6645-00-754-4108
NSN 6105-01-137-5739
NSN 6145-00-994-0820
NSN 5996-01-053-1617
NSN 4140-00-146-1633
NSN 6320-01-462-2295
NSN 5935-00-554-0244
NSN 6105-00-598-0788
NSN 5920-01-176-1413
NSN 6645-01-345-6828