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 5835-01-485-0210
NSN 5960-00-584-4553
NSN 5835-01-141-8823
NSN 6220-01-445-4002
NSN 5999-01-437-8843
NSN 6240-01-463-8276
NSN 5855-01-433-2220
NSN 6240-01-153-2861
NSN 5950-01-318-3351
NSN 6130-00-071-1518
NSN 5925-01-266-1093
NSN 6650-01-170-8971