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 6150-00-328-7953
NSN 5998-00-105-1737
NSN 5895-00-278-5194
NSN 5960-00-875-4655
NSN 6620-01-169-6699
NSN 5998-00-632-3063
NSN 5915-01-589-0171
NSN 5935-00-426-7116
NSN 5910-01-229-2833
NSN 5990-01-529-7307
NSN 5895-00-475-4352
NSN 6645-00-181-1877