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 4140-01-068-7529
NSN 6320-00-908-6841
NSN 5925-01-087-3760
NSN 5835-00-707-6266
NSN 6620-01-614-3591
NSN 5835-01-632-6627
NSN 6130-01-048-7309
NSN 5998-01-487-5129
NSN 6150-01-315-2875
NSN 5920-01-641-8947
NSN 5835-00-237-2879
NSN 5996-01-412-7936