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 6105-01-429-1502
NSN 6220-00-162-5047
NSN 5985-01-139-4667
NSN 5895-01-429-8561
NSN 6645-00-103-2517
NSN 5895-01-418-3834
NSN 6320-01-512-2031
NSN 5910-00-180-8208
NSN 6150-01-090-3406
NSN 5855-01-459-7508
NSN 5998-00-450-5447
NSN 6150-01-181-8250