National Stock Number (NSN) 2520-01-154-4212, or NIIN 011544212, (breather) was assigned May 25, 1983 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 3 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Oct 02, 2019. There have been 8 contracts issued for this part number, with 8 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 3 different suppliers. The last contract numbers awarded were: SPE7L320V0118, SPE7L318V8377, SPE7L318P4012, SPM7L113V3121, SPM7L013M3388. The total value of the awarded contracts has been US$ 5,168.27.
This NSN is fairly common among different weapons systems, belonging to 14 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 May 24, 2017, 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 annual buy value of this part falls below the screening threshold of $10,000 but it has been screened for known source(s). (NOTE: This code shall not be used when screening parts entering the inventory. It shall not be assigned in preference to or supersede any other AMSC.) Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 11034. [A MECHANICAL DEVICE DESIGNED TO PERMIT A FREE FLOW OF AIR INTO AND OUT OF AN ENCLOSURE, USUALLY USED ON ENGINE CRANKCASE, VEHICULAR DIFFERENTIALS AND TRANSMISSIONS, PUMPS, COMPRESSORS, AND THE LIKE. SEE ALSO CAP, VENT, FUEL STORAGE TANK. EXCLUDES VENTALATOR (AS MODIFIED).]. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 2520011544212 contains an unknown precious metal.
This NSN is associated to Schedule B 8483909500: parts, nesoi, of bearing housings & plain shaft bearings, housed bearings, clutches, universal joints, flywheels and transmission shafts. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 333613: mechanical power transmission equipment manufacturing.
This information was last updated on May 01, 2025.