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 5999-01-634-0576
NSN 5990-01-533-1347
NSN 5910-01-601-6033
NSN 5950-01-489-7054
NSN 6220-00-258-2967
NSN 4140-01-184-5191
NSN 5975-01-435-6457
NSN 5998-00-678-0782
NSN 6135-01-079-7852
NSN 5975-00-472-2445
NSN 5920-01-543-1729
NSN 6150-00-293-5293