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 5905-00-827-2875
NSN 4140-01-471-0308
NSN 6650-01-322-3125
NSN 5930-01-541-0022
NSN 5998-00-596-8869
NSN 6145-01-464-9653
NSN 5835-01-128-9331
NSN 6145-00-040-9976
NSN 5915-00-269-4463
NSN 5975-01-038-2914
NSN 7035-00-134-3143
NSN 5975-00-678-5958