Heat treated
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 5855-01-462-9048
NSN 6320-01-523-4954
NSN 5975-01-339-5364
NSN 4140-01-467-5166
NSN 6240-01-432-7926
NSN 6105-00-499-0029
NSN 6320-00-456-0836
NSN 5920-00-958-1526
NSN 6130-01-411-9914
NSN 5965-00-445-1843
NSN 5910-01-631-1673
NSN 5855-00-532-0025