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 5915-01-257-9795
NSN 5975-00-056-4384
NSN 5975-01-408-2070
NSN 6220-00-900-4439
NSN 5905-00-292-1113
NSN 6620-01-369-5876
NSN 5975-01-357-0196
NSN 5930-00-286-8560
NSN 5905-00-817-2943
NSN 5930-01-090-0223
NSN 5975-01-166-1788
NSN 5996-00-153-3216