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 7035-01-353-6861
NSN 6610-01-633-1121
NSN 5855-01-653-7718
NSN 5965-01-050-8447
NSN 5915-01-620-3268
NSN 6610-01-566-8198
NSN 6645-01-629-6343
NSN 5996-01-162-3037
NSN 5915-01-019-4740
NSN 6685-01-057-7720
NSN 5835-01-611-8912
NSN 5975-01-139-4128