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 5855-01-480-8929
NSN
NSN 5965-00-023-0944
NSN 6685-00-110-2911
NSN 5960-00-428-3679
NSN 5985-01-432-8982
NSN 6105-01-523-7814
NSN 6240-01-430-9739
NSN 7035-00-088-7355
NSN 6685-00-839-8623
NSN 5999-00-644-9767
NSN 6150-00-870-7127