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 5895-01-565-8482
NSN 5998-01-003-2897
NSN 2925-01-065-0060
NSN 6110-01-106-4440
NSN 5855-00-198-3197
NSN 4140-00-660-8699
NSN 5950-00-496-7193
NSN 5960-00-672-3836
NSN 5910-01-355-5693
NSN 6145-00-560-5726
NSN 5835-00-779-2836
NSN 6240-01-450-9269