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 7035-01-123-8723
NSN 5930-00-165-3331
NSN 5925-00-290-4451
NSN 5895-01-080-1657
NSN 6145-01-252-1449
NSN 4140-01-065-6000
NSN 6620-00-950-5979
NSN 6650-01-172-5502
NSN 6110-00-808-4121
NSN 5960-01-495-0859
NSN 6135-00-134-6648
NSN 6135-01-069-8575