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 5965-01-633-1281
NSN 6620-01-519-7234
NSN 5895-01-535-1395
NSN 6650-01-212-3964
NSN 5895-00-466-0408
NSN 6150-01-151-0234
NSN 6220-01-382-7997
NSN 6110-01-524-1858
NSN 5960-01-583-4737
NSN 5965-01-447-8821
NSN 5998-01-462-0025
NSN 5960-01-503-0362