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 5895-01-594-0619
NSN 5985-01-424-4228
NSN 6320-01-322-4950
NSN 5930-01-020-7715
NSN 5930-00-274-7167
NSN 6320-01-302-5157
NSN 5930-01-035-0348
NSN 5835-00-226-7825
NSN 5965-01-142-1807
NSN 6150-00-111-0881
NSN 5930-01-546-9324
NSN 6685-00-785-2783