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 5925-00-891-1674
NSN 5960-01-536-9763
NSN 5996-01-578-6162
NSN 5925-01-379-9942
NSN 5999-01-510-3783
NSN 6220-01-525-5956
NSN 5960-01-191-1982
NSN 6685-00-276-9889
NSN 6130-00-509-1591
NSN 6220-01-352-1643
NSN 4140-00-958-9730
NSN 6145-01-103-7275