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 6220-00-099-9192
NSN 6220-01-330-2669
NSN 5945-01-442-9439
NSN 5950-01-334-0024
NSN 6620-01-231-9731
NSN 5855-01-287-6391
NSN 6110-00-216-6911
NSN 6150-01-264-3838
NSN 6130-01-648-9853
NSN 7035-00-631-3782
NSN 6240-00-800-4668
NSN 6130-01-377-1795