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 The penetrant remains in the opening until it is withdrawn by the greater capillary action of the developer.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 5855-01-291-6790
NSN 4140-00-418-2939
NSN 6610-00-476-4402
NSN 5985-01-109-0469
NSN 5996-01-163-6773
NSN 5975-00-164-7661
NSN 5945-01-318-1086
NSN 6620-01-034-4539
NSN 5935-01-138-7266
NSN 6320-01-406-9951
NSN 6320-01-029-4220
NSN 5935-00-943-1291