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 6135-01-222-0703
NSN 5998-00-140-2371
NSN 5895-01-222-9035
NSN 5835-00-065-6757
NSN 5985-01-410-3435
NSN 6220-01-431-7319
NSN 6240-00-204-9355
NSN 6130-01-168-0677
NSN 4140-01-422-3744
NSN 6685-00-782-4291
NSN 5945-01-266-6585
NSN 6105-01-611-7345