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 6685-01-126-5438
NSN 5930-01-157-4751
NSN 6110-01-406-2635
NSN 5835-00-816-0394
NSN 5999-01-348-1774
NSN 5998-00-137-4149
NSN 5905-01-323-0906
NSN 5915-01-357-7585
NSN 6130-00-691-5408
NSN 6620-01-125-3932
NSN 5925-00-983-5666
NSN 6645-01-066-3176