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 6240-00-141-0129
NSN 5975-01-446-6074
NSN 6610-00-180-4565
NSN 5855-01-125-4768
NSN 5930-01-395-9914
NSN 5960-01-522-0391
NSN 6645-00-542-1734
NSN 5915-01-090-8013
NSN 5975-01-237-9442
NSN 5915-00-078-9574
NSN 5960-01-156-7469
NSN 5960-00-512-9121