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 5998-01-603-9867
NSN 6135-01-415-1163
NSN 5998-01-647-3375
NSN 5895-00-503-3611
NSN 6685-00-097-6263
NSN 6145-01-436-2146
NSN 6650-00-197-7563
NSN 5910-01-210-9822
NSN 5920-00-209-0443
NSN 5920-01-604-9045
NSN 6650-01-608-0430
NSN 6145-01-327-3328