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 5920-01-123-9358
NSN 6135-00-228-8140
NSN 6105-01-583-5526
NSN 6645-01-268-7265
NSN 5998-00-835-3147
NSN 5945-01-417-3059
NSN 6645-00-419-9939
NSN 6150-01-091-9818
NSN 5925-01-155-7697
NSN 5950-01-576-9658
NSN 6135-01-390-7364
NSN 5915-00-191-3616