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 5965-01-338-2181
NSN 2925-00-513-6644
NSN 5975-00-671-3528
NSN 6105-01-332-2960
NSN 5925-00-262-5859
NSN 6610-01-168-7943
NSN 5998-01-512-6684
NSN 5930-00-221-5070
NSN 7035-01-246-9936
NSN 5835-01-384-3206
NSN 2925-01-199-4001
NSN 6240-00-968-7380