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 5855-01-203-4719
NSN 6145-01-469-8792
NSN 5910-01-649-2202
NSN 5835-01-568-7796
NSN 6685-01-613-7938
NSN 5996-00-363-9666
NSN 5960-00-072-5874
NSN 6145-01-560-7233
NSN 6645-01-388-0391
NSN 5895-01-607-9176
NSN 6320-00-149-7570
NSN 5960-01-170-4057