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 5950-01-262-1548
NSN 4140-00-137-2493
NSN 5975-01-568-1600
NSN 6220-01-339-2805
NSN 6105-01-340-4988
NSN 6610-00-305-5447
NSN 6320-01-279-0343
NSN 5905-00-392-5508
NSN 6645-01-168-8465
NSN 6220-01-323-7897
NSN 6110-01-568-6847
NSN 5998-00-189-1570