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 The penetrant remains in the opening until it is withdrawn by the greater capillary action of the developer.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 5998-00-725-2013
NSN 5910-01-160-2027
NSN 6240-01-152-1084
NSN 5930-01-181-6360
NSN 5975-01-158-0011
NSN 5990-01-414-7618
NSN 5960-01-443-9681
NSN 6105-01-069-9190
NSN 5975-01-491-0735
NSN 5945-00-711-2096
NSN 5835-01-325-5677
NSN 5915-00-139-1320