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 5996-01-613-5825
NSN 6220-01-657-0668
NSN 5996-01-250-3912
NSN 5998-01-337-9697
NSN 6145-00-970-1549
NSN 5895-01-477-5265
NSN 5920-01-097-7124
NSN 5935-00-954-0568
NSN 5950-01-089-7030
NSN 5910-01-651-0346
NSN 6240-01-426-5581
NSN 5855-00-925-0114