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 2925-01-380-0869
NSN 5998-00-216-7436
NSN 6240-01-420-9255
NSN 6110-01-589-4243
NSN 5935-01-239-2102
NSN 6135-00-112-8635
NSN 5935-01-276-2967
NSN 6645-00-485-9889
NSN 5960-00-990-4094
NSN 6610-00-144-7036
NSN 7035-01-008-7248
NSN 6610-01-180-2184