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 4140-01-277-2548
NSN 5920-00-271-3217
NSN 5895-01-464-4092
NSN 5855-01-324-3756
NSN 5975-01-141-6889
NSN 7035-01-146-7096
NSN 6110-01-435-5441
NSN 5945-01-625-8238
NSN 5835-01-546-2008
NSN 6620-01-353-6675
NSN 6620-00-090-1601
NSN 5930-01-427-3676