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 6145-00-187-6405
NSN 5920-01-418-1821
NSN 6105-01-003-4541
NSN 5996-01-462-1631
NSN 6610-01-037-9858
NSN 6645-00-283-6794
NSN 5835-01-291-5405
NSN 6105-00-903-5064
NSN 5915-01-350-2037
NSN 5915-01-069-9227
NSN 5945-00-843-1540
NSN 6240-00-756-5149