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 5999-01-142-7906
NSN 6240-01-437-6888
NSN 7035-00-997-6212
NSN 6130-01-339-9296
NSN 6220-00-828-9843
NSN 5975-01-603-2030
NSN 5998-00-143-4723
NSN 4140-01-653-4655
NSN 4140-01-392-1542
NSN 5996-00-392-7626
NSN 5930-01-090-0223
NSN 6130-00-061-2091