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 5999-00-924-9112
NSN 6320-00-228-5678
NSN 5895-00-233-5901
NSN 5835-01-515-6537
NSN 5855-00-316-5050
NSN 4140-01-238-7887
NSN 5965-00-139-4870
NSN 5965-00-577-1242
NSN 5925-01-361-8836
NSN 5895-00-186-8572
NSN 5996-01-323-0166
NSN 5998-00-861-7949