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 6130-00-449-6291
NSN 5835-01-200-7153
NSN 7035-00-205-8739
NSN 4140-01-407-9668
NSN 6150-01-470-1438
NSN 6240-01-240-7529
NSN 2925-01-156-4335
NSN 6130-01-447-6158
NSN 6145-01-555-8131
NSN 6685-01-597-9406
NSN 7035-01-217-7474
NSN 5999-01-531-6399