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 5915-00-240-1936
NSN 6610-00-856-7136
NSN 5965-00-185-9687
NSN 6135-01-313-4865
NSN 5999-01-228-0095
NSN 6220-01-581-7352
NSN 5915-01-031-8087
NSN 6220-01-138-1622
NSN 5990-00-082-3107
NSN 6685-01-621-2967
NSN 6685-01-296-6217
NSN 5950-01-398-0635