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 6110-00-161-9444
NSN 6150-00-057-9089
NSN 5990-01-571-7468
NSN 5998-01-315-0734
NSN 6150-01-621-2099
NSN 5930-01-446-6326
NSN 5996-00-661-1151
NSN 6320-00-225-7013
NSN 5990-01-602-6701
NSN 5999-01-366-0282
NSN 6150-01-377-9057
NSN 6645-00-591-8036