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 5905-01-310-5999
NSN 6320-01-462-2295
NSN 6220-01-512-2028
NSN 5975-00-168-9172
NSN 6610-01-161-4835
NSN 5915-01-624-5292
NSN 6145-01-063-5179
NSN 7035-01-003-9142
NSN 5975-01-003-7496
NSN 2925-01-184-2413
NSN 5985-01-330-6793
NSN 5935-01-161-6953