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 5910-01-068-8019
NSN 5915-01-357-0168
NSN 6685-01-224-6405
NSN 5835-00-513-9680
NSN 6150-01-330-3627
NSN 5985-00-628-4647
NSN 5998-01-118-0228
NSN 6685-01-020-8756
NSN 6320-01-198-4024
NSN 5996-00-889-8825
NSN 6650-00-077-0638
NSN 6105-00-951-6972