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 5905-01-112-0144
NSN 5920-01-014-8195
NSN 5998-01-192-9281
NSN 5975-00-843-8226
NSN 5935-00-170-6519
NSN 6135-00-191-6444
NSN 6240-01-174-1907
NSN 5945-01-648-1101
NSN 6650-01-170-5440
NSN 5996-00-969-1668
NSN 6130-00-753-7308
NSN 5975-00-833-2398