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 6685-01-120-5002
NSN 6220-01-545-1397
NSN 5985-01-175-4037
NSN 6620-01-246-4314
NSN 5915-01-471-3487
NSN 6685-01-040-7710
NSN 6620-01-508-6072
NSN 6645-01-200-5289
NSN 6105-00-516-2151
NSN 5910-01-301-7649
NSN 5999-00-272-7453
NSN 5930-01-534-5035