National Stock Number
4820-01-261-4131
National Stock Number (NSN) 4820-01-261-4131, or NIIN 012614131, (valve,vacuum breaking) was assigned August 12, 1987 in the Federal Logistics Information System (FLIS). NIIN 012614131 was cancelled on May 2, 2011, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 4820012153188. This NSN does not replace any other NSNs.
There are 2 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 Jan 10, 2011. There has been one contract issued for this part number, with one award given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPM7M211M1576, SPM7M211M1576. The total value of the awarded contracts has been US$ 394.66.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries.
This NSN is assigned to Item Name Code (INC) 08101. [AN ITEM DESIGNED TO AUTOMATICALLY RELIEVE VACUUM, BY THE INTAKE OF AIR, WHEN THE INTERNAL PRESSURE FALLS BELOW ATMOSPHERIC PRESSURE. SEE ALSO VALVE, VACUUM REGULATING.]. 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 4820012614131 does not contain precious metals.
This information was last updated on Aug 01, 2025.