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 6620-01-375-6741
NSN 5950-01-031-3161
NSN 5975-01-357-7019
NSN 6110-01-255-5190
NSN 7035-01-602-3709
NSN 5925-01-049-7364
NSN 6110-01-162-0254
NSN 6240-00-212-4305
NSN 6320-00-313-9114
NSN 5855-01-054-9014
NSN 5985-01-114-1969
NSN 6220-01-200-6461