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 6320-01-220-2264
NSN 5910-00-059-6359
NSN 5925-01-508-2348
NSN 6610-01-134-4516
NSN 5835-01-631-3940
NSN 5920-01-188-1404
NSN 6145-01-154-2289
NSN 6150-01-587-7929
NSN 5935-01-289-9586
NSN 5925-01-023-2996
NSN 5925-00-199-9565
NSN 5975-01-108-7049