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 5945-01-607-6394
NSN 5835-01-242-9806
NSN 6240-01-461-2139
NSN 5930-00-959-5847
NSN 5996-00-402-3006
NSN 6130-00-734-5354
NSN 6645-01-564-6270
NSN 7035-00-104-7613
NSN 5990-01-546-1649
NSN 5855-01-459-9254
NSN 6135-00-262-6807
NSN 6240-01-290-6449