National Stock Number
6850-01-669-7391
National Stock Number (NSN) 6850-01-669-7391, or NIIN 016697391, (inspection penetrant) was assigned January 19, 2018 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 22013. [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 THE PENETRANT REMAINS IN THE OPENING UNTIL IT IS WITHDRAWN BY THE GREATER CAPILLARY ACTION OF THE DEVELOPER.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no information in the HMIRS; however, the NSN is in an FSC in Table I of Federal Standard 313 and an MSDS should be available to the user. NSN 6850016697391 does not contain precious metals.
This information was last updated on Aug 01, 2025.