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 6110-01-010-0905
NSN 5910-01-123-0750
NSN 5835-00-020-0443
NSN 5945-01-570-4626
NSN 5915-00-966-7668
NSN 5920-01-502-5838
NSN 5998-01-465-3775
NSN 5996-01-327-7835
NSN 6685-01-585-8019
NSN 6145-00-342-8122
NSN 6650-01-061-8982
NSN 4140-01-115-7377