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 5996-01-560-6587
NSN 6130-01-197-2920
NSN 6130-00-116-8170
NSN 5998-01-429-9430
NSN 5910-00-375-5045
NSN 5935-00-282-7967
NSN 5999-00-351-0420
NSN 5910-00-977-9100
NSN 5985-00-459-0439
NSN 5910-01-560-4230
NSN 5930-01-467-2064
NSN 5855-01-496-8562