National Stock Number (NSN) 6850-01-121-0953, or NIIN 011210953, (inspection penetrant developer,w) was assigned October 30, 1981 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 6850012882738.
There are 2 manufacturer part numbers associated with this NSN. 2 of those 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, there are no suppliers that are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. There have been 207 contracts issued for this part number, with 437 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE4A625FC39G, SPE4A725FBM94, SPE4A725FBM94, SPE4A625FBLZS, SPE4A625FBLZS. The total value of the awarded contracts has been US$ 553,111.79.
This NSN is unique to one weapons system.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. The 24 month forecast from the US Government for this part number has low volatility, with an estimated forecasted value of US$ 90,195. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jan 04, 2014, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) Acquisition of this part is controlled by QPL procedures. Valid AMCs: 1 and 2.
This NSN is assigned to Item Name Code (INC) 26930. [A MATERIAL SUPPLIED IN WET OR DRY FORM TO BE APPLIED TO THE PART BEING PENETRANT INSPECTED, AFTER THE EXCESS SURFACE PENETRANT HAS BEEN REMOVED. THE "WET" DEVELOPER, ON DRYING, PROVIDES AN ABSORBENT WHITE BACKGROUND TO THE PART FOR MAXIMUM COLOR CONTRAST, AND ENHANCES THE BLEED OUT OF THE PENETRANT FROM THE CAVITY TO OBTAIN INCREASED INSPECTION ACCURACY.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. Information is in the Hazardous Materials Information Resource System (HMIRS). NSN 6850011210953 does not contain precious metals.
This NSN is associated to Schedule B 3403990000: lubricating preparations,not containing petroleum oils or oils obtained from bituminous minerals, other. The Schedule B End Use is listed as chemicals-other. NAICS classification category 325613: surface active agent manufacturing.
This information was last updated on Aug 01, 2025.