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 6320-01-415-0953
NSN 5895-01-062-8547
NSN 5985-01-446-6868
NSN 6105-01-250-2384
NSN 5945-01-529-8816
NSN 6105-00-225-0189
NSN 5985-00-882-3016
NSN 5905-00-344-7508
NSN 5999-00-198-3959
NSN 5985-01-377-3388
NSN 6130-01-336-2770
NSN 6320-00-004-9158