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 6110-01-372-7842
NSN 5996-01-363-7130
NSN 5990-00-351-5479
NSN 6150-01-384-3660
NSN 5998-00-349-2294
NSN 6150-01-508-4947
NSN 5975-00-596-4716
NSN 5975-00-812-0642
NSN 6645-01-463-4314
NSN 6650-01-302-7685
NSN 5950-01-470-6607
NSN 6645-01-554-7557