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 4140-00-833-6239
NSN 5945-01-634-0588
NSN 5975-01-003-9803
NSN 5935-01-407-4524
NSN 6145-01-126-5064
NSN 6150-00-437-5489
NSN 5895-01-352-8774
NSN 5960-01-097-0645
NSN 7035-00-511-8617
NSN 5975-01-582-1565
NSN 5910-00-686-5048
NSN 5945-01-420-7776