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 4140-00-344-8601
NSN 5935-01-486-4020
NSN 5930-00-006-8876
NSN 2925-01-442-7812
NSN 6320-00-456-0836
NSN 6105-01-168-7698
NSN 5930-00-826-6915
NSN 5915-00-051-3997
NSN 7035-00-497-8784
NSN 5930-01-252-7038
NSN 5996-01-633-7979
NSN 5855-00-532-0025