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 5855-00-149-0766
NSN 6150-01-316-0592
NSN 6110-01-039-7161
NSN 6110-01-519-9131
NSN 5915-01-262-1159
NSN 6110-01-100-6816
NSN 5985-01-125-9657
NSN 2925-01-359-9818
NSN 5990-00-061-9041
NSN 5910-01-363-6580
NSN 6320-01-148-8125
NSN 6320-01-021-6633