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 5925-01-076-9432
NSN 6645-00-486-8649
NSN 6145-01-583-6094
NSN 6130-00-807-6644
NSN 4140-01-422-4223
NSN 5945-00-701-4841
NSN 5835-00-358-4235
NSN 6135-01-386-5709
NSN 5835-01-200-5069
NSN 6240-01-064-9727
NSN 6150-01-147-4475
NSN 5999-01-411-6758