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 5999-01-065-2179
NSN 5855-00-004-0904
NSN 6320-01-384-3850
NSN 6105-01-617-1831
NSN 5895-01-432-2464
NSN 5996-01-458-9644
NSN 5935-00-888-1439
NSN 5895-01-151-7686
NSN 6645-00-791-5284
NSN 5965-01-510-9569
NSN 5905-00-520-3770
NSN 6105-01-634-0322