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 6150-00-058-8669
NSN 5855-01-007-9541
NSN 5915-01-302-0375
NSN 5925-01-490-5639
NSN 6620-01-106-2814
NSN 5935-00-005-0308
NSN 5905-01-386-7284
NSN 6320-01-652-3806
NSN 5930-01-542-8853
NSN 6130-01-472-1932
NSN 5990-00-201-1162
NSN 4140-01-093-6435