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 5935-01-071-0367
NSN 5895-00-253-8138
NSN 5930-01-119-2847
NSN 6105-01-480-3734
NSN 6145-00-521-0001
NSN 7035-00-541-8516
NSN 5996-01-449-0666
NSN 6320-01-436-9228
NSN 5925-01-411-6028
NSN 6150-00-429-6135
NSN 6645-01-423-9361
NSN 5920-00-223-5194