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 6685-01-430-1142
NSN 5999-01-313-3747
NSN 6150-01-023-7710
NSN 5996-00-472-3304
NSN 6220-01-652-6825
NSN 6130-00-821-3500
NSN 6620-01-163-9633
NSN 5910-01-059-7499
NSN 5930-01-238-6199
NSN 6320-01-050-1290
NSN 5905-00-900-0136
NSN 5895-01-075-1667