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 5975-00-478-2126
NSN 5835-01-303-6563
NSN 6150-00-433-8831
NSN 4140-00-466-9268
NSN 6650-01-057-8486
NSN 5998-00-841-0392
NSN 5835-00-827-1904
NSN 6320-01-262-8642
NSN 5895-01-541-8139
NSN 6135-00-262-6807
NSN 5910-01-021-6267
NSN 5930-01-032-0164