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 5925-00-723-9826
NSN 6110-01-523-1513
NSN 7035-01-215-2449
NSN 7035-00-150-2379
NSN 5895-01-597-2357
NSN 5915-01-446-5028
NSN 5985-01-629-8261
NSN 5975-01-531-2781
NSN 4140-01-605-1706
NSN 5935-01-513-8245
NSN 6610-00-536-4977
NSN 5985-00-823-4606