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 6620-00-001-1398
NSN 5935-00-194-9415
NSN 6320-01-643-0850
NSN 5999-01-062-2923
NSN 5999-01-592-4527
NSN 6130-01-318-8012
NSN 5930-01-634-0659
NSN 5855-00-156-5489
NSN 5950-01-233-0769
NSN 5960-00-615-9972
NSN 5905-01-386-5846
NSN 2925-01-055-9705