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 6650-01-534-3587
NSN 6320-01-457-2805
NSN 6145-01-018-0244
NSN 6220-01-468-1509
NSN 5915-01-033-4262
NSN 6685-01-489-7034
NSN 6220-01-116-2411
NSN 6220-01-441-1271
NSN 5975-01-091-5505
NSN 2925-00-365-3289
NSN 6645-01-311-2643
NSN 4140-00-886-1710