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 6685-01-499-1995
NSN 4140-01-341-4935
NSN 5990-01-553-6859
NSN 6145-01-576-9609
NSN 6610-01-470-3413
NSN 5975-01-130-0519
NSN 6610-00-003-7899
NSN 5935-00-632-7795
NSN 6320-00-225-7013
NSN 5945-01-651-3604
NSN 5835-01-257-0154
NSN 5950-01-421-8786