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 6240-00-476-6916
NSN 6320-00-994-0179
NSN 5935-00-204-0075
NSN 6620-01-168-8450
NSN 5998-01-462-1895
NSN 6220-00-869-6988
NSN 5835-01-414-3258
NSN 6135-00-840-6451
NSN 5950-01-211-5831
NSN 5895-01-281-6196
NSN 5945-00-520-5636
NSN 5895-01-062-5055