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 6320-01-512-2031
NSN 5835-00-224-9148
NSN 6645-01-141-0310
NSN 5998-01-461-3651
NSN 5855-01-531-7036
NSN 5855-00-560-0110
NSN 6650-01-044-6377
NSN 6150-01-325-4561
NSN 5960-00-786-7967
NSN 6145-01-382-7856
NSN 5895-00-651-9552
NSN 5920-00-930-1212