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 5998-00-001-2781
NSN 2925-01-146-0278
NSN 6105-00-132-5162
NSN 5905-00-827-0728
NSN 5996-00-976-1429
NSN 6135-00-128-1633
NSN 5925-00-186-8669
NSN 6240-01-633-9357
NSN 5935-00-720-8335
NSN 6620-01-030-0525
NSN 4140-01-420-6263
NSN 5975-01-391-1819