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 6650-01-481-6647
NSN 5920-00-581-9471
NSN 5975-01-534-7598
NSN 6135-00-643-4843
NSN 6135-00-505-0679
NSN 6685-00-789-3404
NSN 6685-01-513-0798
NSN 5925-01-569-2283
NSN 6610-01-411-6800
NSN 7035-01-227-2546
NSN 6110-01-034-7217
NSN 5895-00-469-6601