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 6240-00-957-5724
NSN 6105-00-265-7545
NSN 6150-01-371-3435
NSN 5855-01-411-0189
NSN 5945-00-985-8376
NSN 7035-01-532-2184
NSN 6620-01-426-2220
NSN 5998-01-386-3123
NSN 6320-00-242-3300
NSN 5835-01-213-0833
NSN 5910-00-109-0680
NSN 6130-00-525-9271