National Stock Number (NSN) 6635-00-641-2661, or NIIN 006412661, (fluorescent penetrant inspection) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 8 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 7 suppliers. Today, 4 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 suppliers are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over a year. There have been 25 contracts issued for this part number, with 25 awards given. There is heavy competition for this NSN. The US Government has awarded contracts to 16 different suppliers. The last contract numbers awarded were: SPE4A623PP662, SPE4A123P0519, SPE4A520P5055, SPE4A619PB834, SPE4A619PB834. The total value of the awarded contracts has been US$ 980,160.39.
This NSN is somewhat common among different platforms, belonging to 2 different weapons systems.
There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Aug 11, 2011, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The Government does not have adequate data, lacks rights to data, or both, needed to purchase this part from additional sources. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 19007. [A DEVICE DESIGNED FOR THE INSPECTION, BY THE WET AND DRY METHOD, TO DETECT SURFACE AND NEAR SURFACE FLAWS IN MAGNETIC AND NONMAGNETIC METALS, CERAMICS, GLASS, PLASTICS AND OTHER SOLID MATERIALS.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 6635006412661 contains an unknown precious metal.
This NSN is associated to Schedule B 9027803500: physical analysis instruments and apparatus, except using optical radiations, nesoi. The Schedule B End Use is listed as laboratory testing instruments. NAICS classification category 334516: analytical laboratory instrument manufacturing.
This information was last updated on Jul 01, 2025.