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 6220-00-681-1678
NSN 5990-01-357-2453
NSN 5985-00-568-1754
NSN 6610-00-793-7113
NSN 6240-01-460-8005
NSN 6135-01-308-5688
NSN 5985-01-507-3878
NSN 5835-01-509-8992
NSN 5895-00-752-6171
NSN 5999-01-373-5471
NSN 6240-00-635-9953
NSN 5895-00-933-9923