National Stock Number
9150-01-256-6433
National Stock Number (NSN) 9150-01-256-6433, or NIIN 012566433, (hydraulic fluid,fire resistant) was assigned June 7, 1987 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 7 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 3 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts. ISO Group has built a very strong supply chain for this NSN. We have direct relationships with 26 sources of supply.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Jun 11, 2020. There have been 82 contracts issued for this part number, with 229 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE4A620FDW3F, SPE4A620FDV4P, SPE4A620FDV4P, SPE4A620FDW3F, SPE4A620FDC0R. The total value of the awarded contracts has been US$ 242,795.29.
This NSN is fairly common among different weapons systems, belonging to 12 different platforms.
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 Oct 31, 2007, 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) 21822. [A STABLE SYNTHETIC FLUID, FREE FROM WATER, FOR APPLICATIONS WHERE BEARING PRESSURES ARE HIGH AND WHERE TEMPERATURES REPEATEDLY EXCEED 140 DEGREES FAHRENHEIT. IT HAS A HIGH FLASH POINT, IS NONCORROSIVE AND NONTOXIC, AND HAS ADDITIVES TO PREVENT WEAR. EXCLUDES:HYDRAULIC FLUID, NONCOMBUSTIBLE; HYDRAULIC FLUID, NONPETROLEUM BASE, AIRCRAFT; AND BRAKE FLUID, AUTOMOTIVE.]. 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 9150012566433 does not contain precious metals.
This information was last updated on Jul 01, 2026.