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 5920-01-607-1661
NSN 5996-00-230-5550
NSN 5910-01-056-3529
NSN 6240-01-611-5297
NSN 6110-01-181-0217
NSN 5945-01-556-7258
NSN 5895-00-061-7192
NSN 5965-01-267-8536
NSN 5996-01-192-8606
NSN 2925-01-542-1865
NSN 5998-00-831-5786
NSN 5930-00-366-7046