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 5999-01-197-1925
NSN 5910-00-081-2215
NSN 6105-01-213-7446
NSN 5915-01-156-5703
NSN 5895-01-522-3475
NSN 5910-00-841-1580
NSN 5960-00-575-5116
NSN 5930-00-529-8641
NSN 5855-01-013-6864
NSN 5920-00-172-5551
NSN 5945-01-050-0970
NSN 5945-01-306-5512