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 5975-00-193-8508
NSN 6320-01-449-1014
NSN 6110-01-377-8041
NSN 5999-00-143-1818
NSN 6620-01-245-0184
NSN 5985-00-879-4653
NSN 6105-01-440-9271
NSN 5975-01-540-9605
NSN 5998-01-541-5073
NSN 6610-00-489-4771
NSN 5930-00-786-1857
NSN 6220-01-537-5288