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 5915-00-980-8072
NSN 5910-01-365-5438
NSN 5930-01-417-2595
NSN 5935-00-158-5541
NSN 6150-01-143-5972
NSN 6610-01-603-0703
NSN 6130-00-347-7023
NSN 6685-00-004-7438
NSN 5855-01-450-8820
NSN 6105-00-677-0593
NSN 5950-00-419-8421
NSN 5996-00-201-3763