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 2925-00-998-3510
NSN 6610-01-149-1465
NSN 5925-00-344-3156
NSN 5996-01-093-9259
NSN 5950-01-257-8560
NSN 5925-01-053-6519
NSN 6150-00-800-1059
NSN 5905-00-594-8102
NSN 5999-00-799-2017
NSN 5998-01-443-3465
NSN 4140-01-202-2840
NSN 5835-01-047-8343