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 5985-01-382-0001
NSN 5895-01-054-4104
NSN 5835-00-509-2373
NSN 5950-01-423-8208
NSN 6685-01-580-0669
NSN 6105-00-899-0415
NSN 6610-01-121-4925
NSN 5985-00-347-7394
NSN 7035-01-183-1989
NSN 5965-00-246-5612
NSN 2925-01-609-8464
NSN 6620-01-122-8886