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 6145-01-482-7875
NSN 5990-01-455-8035
NSN 6645-00-758-4567
NSN 5985-00-719-1603
NSN 5950-01-161-0918
NSN 6110-01-165-0499
NSN 5950-01-444-1174
NSN 5998-01-398-0626
NSN 5935-01-142-5825
NSN 6130-00-151-5001
NSN 6685-00-123-7981
NSN 6620-00-137-0332