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 5999-01-365-5891
NSN 6220-00-330-3717
NSN 6150-01-519-3284
NSN 6105-01-024-9425
NSN 5960-00-525-1898
NSN 6130-00-100-0175
NSN 2925-01-424-9341
NSN 5990-00-061-9041
NSN 6650-00-717-8913
NSN 5985-00-208-6751
NSN 6145-01-506-4467
NSN 6320-00-701-0437