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 6610-01-387-5630
NSN 6135-01-251-2095
NSN 6220-01-469-1904
NSN 5950-01-318-5455
NSN 5895-00-624-5685
NSN 5975-01-283-1238
NSN 5915-01-646-1060
NSN 5920-00-508-5804
NSN 6645-00-124-2563
NSN 6150-01-497-1112
NSN 6220-00-921-6948
NSN 6650-01-111-6825