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 5990-01-633-9503
NSN 6610-00-186-9180
NSN 6610-00-042-8461
NSN 6110-00-544-9521
NSN 5996-00-518-4880
NSN 5975-01-147-4781
NSN 5990-01-281-9784
NSN 6220-00-193-7278
NSN 5910-00-082-1824
NSN 5990-01-425-2175
NSN 5975-01-190-6546
NSN 5895-01-273-8402