National Stock Number (NSN) 4820-01-131-8507, or NIIN 011318507, (cock,poppet drain) was assigned May 18, 1982 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. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 5 suppliers. Today, 5 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 4 suppliers are deemed design controlled or valid supply parts.
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 11 contracts issued for this part number, with 11 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 5 different suppliers. The last contract numbers awarded were: SPE7M425P1785, SPE7M425F0087, SPE7MC23V2758, SPE7MC23V2758, SPE7M121P7351. The total value of the awarded contracts has been US$ 100,084.64.
This NSN is somewhat common among different platforms, belonging to 6 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 Jul 02, 2006, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) Acquisition of this part is restricted to source(s) specified on "Source Control", "Altered Item" or "Selected Item" drawings/documents. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 16989. [AN ITEM DESIGNED TO DRAIN FLUIDS FROM FUEL SYSTEMS, TANKS, FILTERS, OR SIMILAR ITEMS. IT HAS A MOUNTING END, A FREE FLOWING END, AND A QUICK-ACTING NONMETALLIC SEALED CLOSURE, USUALLY SPRING LOADED, THAT HOLDS IT IN AN "OFF" POSITION. IT REQUIRES NO LUBRICATION OTHER THAN FROM THE FLUID BEING DRAINED.]. 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 4820011318507 does not contain precious metals.
This NSN is associated to Schedule B 8481909090: parts of taps, cocks, valves and similar appliances, nesoi. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 332911: industrial valve manufacturing.
This information was last updated on Jul 01, 2025.