Heat treated
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 5975-01-413-3493
NSN 5996-01-544-9731
NSN 6130-01-605-5782
NSN 6130-01-473-9071
NSN 5999-00-070-9863
NSN 6320-00-336-9123
NSN 5998-01-311-3892
NSN 5998-00-955-2428
NSN 5915-01-362-0665
NSN 6135-01-380-4396
NSN 5965-00-791-0964
NSN 6240-01-214-4805