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 6130-01-384-3977
NSN 5930-00-240-1764
NSN 6240-01-391-7773
NSN 5999-00-786-5536
NSN 5905-01-285-9876
NSN 5895-01-319-6721
NSN 6685-01-450-7744
NSN 6150-01-532-6141
NSN 5996-01-417-4246
NSN 6620-01-652-4349
NSN 6240-01-224-7656
NSN 7035-01-413-6697