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 5935-01-366-3767
NSN 6135-01-142-6456
NSN 6645-01-016-7706
NSN 7035-01-095-9322
NSN 5925-01-421-4473
NSN 5930-01-127-8367
NSN 6150-00-861-7710
NSN 5915-00-417-3834
NSN 5910-01-592-3861
NSN 5945-00-467-3020
NSN 5999-00-115-8357
NSN 6650-01-536-0737