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 6320-00-036-3688
NSN 6105-01-527-2890
NSN 5998-01-238-2144
NSN 6685-00-874-7240
NSN 5999-01-529-7192
NSN 5935-01-605-5667
NSN 5998-00-223-4738
NSN 7035-00-270-5519
NSN 5935-00-812-7494
NSN 6135-01-504-4309
NSN 2925-00-126-2879
NSN 6645-01-030-8930