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 2925-00-139-3231
NSN 5930-01-599-1463
NSN 5998-00-615-9251
NSN 5945-01-142-0040
NSN 6685-01-163-2711
NSN 6620-01-158-5111
NSN 6220-00-514-3005
NSN 6320-00-636-0922
NSN 5985-01-289-0888
NSN 6105-01-218-5911
NSN 2925-00-701-9991
NSN 2925-00-804-8971