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 5910-00-563-2432
NSN 5996-01-229-3676
NSN 6145-00-062-6691
NSN 5925-01-297-5906
NSN 6240-00-801-8002
NSN 6110-01-481-0485
NSN 6145-01-401-3713
NSN 5985-00-046-1877
NSN 5960-00-829-6227
NSN 6150-00-764-5809
NSN 6620-01-158-0497
NSN 6240-01-097-8689