An oil or ester base liquid used with a developer to detect surface flaws in metals, ceramics, glass, and some plastics. Penetrants will reveal only defects which are open to the surface and which are of sufficient magnitude to permit entrance of the penetrant by capillary action. The penetrant remains in the opening until it is withdrawn by the greater capillary action of the developer.
NSN 5835-00-583-1316
NSN 6320-01-399-6177
NSN 6240-01-176-9037
NSN 5950-01-057-6846
NSN 6130-01-187-7862
NSN 5965-00-461-2594
NSN 6145-01-221-3105
NSN 5915-01-451-4332
NSN 6145-00-104-7789
NSN 5895-00-522-7935
NSN 5910-01-075-2767
NSN 6150-01-146-0654