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 5910-00-975-2060
NSN 5930-01-465-1056
NSN 5965-01-088-5414
NSN 7035-01-599-9942
NSN 6240-00-764-5207
NSN 2925-01-372-9455
NSN 5950-00-578-5698
NSN 5990-00-686-5868
NSN 6220-01-288-4269
NSN 5998-01-620-2785
NSN 6145-00-146-9600
NSN 5915-01-255-6907