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 5925-00-559-7527
NSN 4140-00-210-0552
NSN 5935-01-106-0276
NSN 5998-01-112-3459
NSN 5975-01-415-0918
NSN 5935-01-452-9023
NSN 6130-01-121-3176
NSN 6620-00-035-5813
NSN 5960-01-167-8796
NSN 5975-01-143-0147
NSN 5920-01-086-1442
NSN 5895-01-409-2949