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 6220-01-430-0442
NSN 6135-00-782-6988
NSN 6650-01-037-0510
NSN 5930-01-634-0659
NSN 5915-01-488-6211
NSN 6145-01-361-3122
NSN 5835-01-192-4165
NSN 5996-01-181-7057
NSN 6130-01-501-0513
NSN 5855-00-327-2112
NSN 5990-01-315-3754
NSN 5925-01-018-4862