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 7035-00-541-8516
NSN 5895-01-364-6868
NSN 4140-00-758-7686
NSN 5990-01-204-7576
NSN 5996-01-345-6875
NSN 5996-01-180-5834
NSN 6150-01-261-5210
NSN 6685-00-498-8865
NSN 5945-01-084-6584
NSN 5915-01-005-0164
NSN 4140-01-229-8820
NSN 5990-01-156-8862