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 5920-01-171-4233
NSN 5950-00-159-9795
NSN 5990-01-485-0260
NSN 6220-00-222-7426
NSN 6110-00-218-0967
NSN 5835-01-647-4859
NSN 7035-01-249-4547
NSN 5975-01-398-0486
NSN 5910-01-325-2575
NSN 5960-01-462-1864
NSN 5965-01-623-9252
NSN 4140-00-952-2287