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 5965-01-461-2562
NSN 5930-01-542-7697
NSN 5985-00-089-0531
NSN 7035-00-104-7613
NSN 6650-01-317-2101
NSN 6130-00-738-1027
NSN 6645-01-450-5175
NSN 5835-01-303-6563
NSN 6145-01-524-2112
NSN 5855-01-634-0259
NSN 5950-01-344-4393
NSN 5990-01-024-9659