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 6130-01-489-0415
NSN 6650-01-509-8018
NSN 5950-01-180-6705
NSN 6645-00-258-8547
NSN 5915-00-481-7364
NSN 6685-01-320-6791
NSN 5965-00-612-0072
NSN 6145-01-121-4371
NSN 7035-01-056-5350
NSN 2925-01-347-9346
NSN 6220-01-604-6477
NSN 4140-00-399-5994