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 6650-01-463-8405
NSN 5925-01-461-9956
NSN 5835-01-641-0073
NSN 4140-01-579-7760
NSN 5930-01-605-0162
NSN 5999-01-062-6401
NSN 5975-01-514-0043
NSN 6220-01-634-0660
NSN 6240-01-472-9197
NSN 5915-01-298-0442
NSN 5990-01-423-2219
NSN 4140-01-318-7540