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 5915-01-550-6724
NSN 5998-00-560-7971
NSN 5998-01-611-0380
NSN 5945-00-894-1909
NSN 6610-00-204-6792
NSN 6620-01-316-5487
NSN 5999-01-214-0469
NSN 6320-01-506-9439
NSN 6610-00-204-6792
NSN 6135-00-938-1351
NSN 5990-00-791-4064
NSN 6685-01-050-8759