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 5835-01-197-5673
NSN 6145-01-447-7338
NSN 5990-01-548-3711
NSN 6240-01-128-3759
NSN 4140-01-113-6415
NSN 5950-01-567-5770
NSN 6150-01-310-5568
NSN 6645-01-191-0107
NSN 6150-01-420-9091
NSN 5855-01-605-8473
NSN 5990-01-485-0260
NSN 5990-01-328-9846