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 6135-01-190-2628
NSN 6610-01-294-5666
NSN 5998-00-888-9887
NSN 5950-01-149-1181
NSN 7035-00-679-9027
NSN 5990-01-482-5950
NSN 6610-01-513-1903
NSN 5915-01-214-2317
NSN 6145-00-674-1807
NSN 6110-01-515-2720
NSN 6135-01-230-4399
NSN 6135-00-228-8140