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 5975-01-257-5706
NSN 6645-01-210-8180
NSN 5998-00-161-6288
NSN 5855-01-502-2789
NSN 6105-01-421-4457
NSN 6610-01-461-3850
NSN 6130-01-350-5814
NSN 5935-00-240-5019
NSN 6145-01-573-9123
NSN 5965-01-202-1007
NSN 6105-00-103-9907
NSN 5835-01-100-3265