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 6135-01-407-0594
NSN 7035-00-902-8995
NSN 5930-01-365-9751
NSN 5990-00-114-1570
NSN 5895-01-213-9043
NSN 5925-00-553-9899
NSN 6320-01-333-5782
NSN 5935-00-569-6572
NSN 6620-00-963-1319
NSN 5965-01-633-8849
NSN 6320-01-616-0843
NSN 5835-00-172-8292