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 5985-01-277-2098
NSN 6610-01-554-4921
NSN 5935-00-326-1916
NSN 5998-01-131-4327
NSN 5915-01-446-1016
NSN 6685-00-016-3652
NSN 6145-00-314-6841
NSN 6240-01-329-8095
NSN 6130-01-119-3002
NSN 6240-00-977-5599
NSN 6685-01-075-3732
NSN 5975-00-817-1781