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 5905-00-428-9559
NSN 5999-00-456-0603
NSN 5915-01-248-1909
NSN 6610-01-225-0416
NSN 5920-01-065-1824
NSN 6685-00-042-5073
NSN 6650-01-154-1870
NSN 5996-00-106-3915
NSN 5910-01-626-2011
NSN 5905-01-289-8979
NSN 6650-01-168-8451
NSN 5855-01-266-1645