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 5950-01-016-0514
NSN 6620-01-158-5111
NSN 5945-01-238-5542
NSN 5920-01-551-5340
NSN 2925-00-578-4068
NSN 6220-01-495-1433
NSN 6145-01-063-8566
NSN 5965-01-130-1965
NSN 5996-01-633-7979
NSN 5998-01-226-8947
NSN 5960-01-331-3817
NSN 6620-01-032-3937