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 6150-01-406-3907
NSN 4140-00-293-7847
NSN 2925-01-545-2717
NSN 6685-00-912-1847
NSN 6645-00-796-7206
NSN 5996-01-108-8764
NSN 5895-00-501-8174
NSN 6150-01-533-1540
NSN 6240-00-113-8820
NSN 6145-00-152-6499
NSN 5998-00-440-2232
NSN 2925-01-389-3726