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 6240-01-232-2665
NSN 6145-00-482-9546
NSN 5945-01-140-4330
NSN 5998-01-304-5508
NSN 6150-01-161-1496
NSN 5985-01-290-9966
NSN 6645-01-025-1002
NSN 5930-00-216-7511
NSN 5905-01-137-6332
NSN 5950-01-440-9379
NSN 6610-01-536-2446
NSN 6610-00-647-3830