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 5985-01-646-1108
NSN 5935-01-575-3941
NSN 5950-01-242-9896
NSN 5965-00-725-4453
NSN 5985-01-214-0473
NSN 6220-01-418-7776
NSN 5945-01-525-1017
NSN 5945-01-480-7222
NSN 5895-00-752-0549
NSN 6240-00-453-9630
NSN 5975-00-216-4848
NSN 5935-01-542-9219