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 5835-01-416-6449
NSN 5945-00-246-5740
NSN 6130-00-518-1723
NSN 5945-01-255-5197
NSN 5895-01-310-3526
NSN 4140-00-547-8918
NSN 5915-01-024-8200
NSN 2925-00-203-8735
NSN 5855-01-122-9418
NSN 5950-01-571-8560
NSN 6150-01-302-8787
NSN 6650-01-140-4463