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 6145-01-530-7171
NSN 6685-00-488-6912
NSN 5835-01-525-3220
NSN 6610-00-088-9527
NSN 7035-00-064-7008
NSN 6240-00-079-1759
NSN 6320-00-164-4087
NSN 5950-00-655-1416
NSN 5905-01-104-5874
NSN 6320-00-225-7013
NSN 6610-00-955-6118
NSN 6645-00-339-0318