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 5975-01-138-7413
NSN 6645-01-237-2568
NSN 5950-00-515-5402
NSN 5975-01-189-7345
NSN 5975-01-497-4411
NSN 6150-00-235-6293
NSN 6150-01-099-1584
NSN 6110-01-423-6950
NSN 5915-01-433-2128
NSN 6610-00-114-2877
NSN 6650-00-791-1637
NSN 5905-00-296-8763