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 6220-01-396-1617
NSN 6645-01-556-1441
NSN 5998-01-421-4567
NSN 5835-00-148-9719
NSN 6645-01-531-5976
NSN 5835-01-125-2558
NSN 5996-01-359-9931
NSN 5996-00-057-9167
NSN 6320-01-355-2367
NSN 6240-01-050-7537
NSN 6320-00-593-0379
NSN 7035-01-494-4131