A material supplied in wet or dry form to be applied to the part being penetrant inspected, after the excess surface penetrant has been removed. The "wet" developer, on drying, provides an absorbent white background to the part for maximum color contrast, and enhances the bleed out of the penetrant from the cavity to obtain increased inspection accuracy.
NSN 4140-01-348-0384
NSN 5996-01-461-6826
NSN 5965-01-377-3587
NSN 6320-00-456-0836
NSN 5965-00-153-5216
NSN 5895-01-113-3279
NSN 6320-01-592-6248
NSN 6320-01-457-2805
NSN 6685-01-467-2493
NSN 5935-01-100-3661
NSN 6110-01-298-0975
NSN 5915-01-359-2573