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 5960-01-599-9821
NSN 5960-00-059-5128
NSN 5999-00-533-6264
NSN 5965-01-398-0779
NSN 5855-01-499-6147
NSN 6130-01-062-1640
NSN 5855-01-082-3693
NSN 7035-00-488-9765
NSN 5835-01-572-9308
NSN 5960-00-658-7209
NSN 6685-01-250-6993
NSN 6105-01-310-8468