National Stock Number
2840-00-918-8406
National Stock Number (NSN) 2840-00-918-8406, or NIIN 009188406, (sealing ring,air,co) was assigned January 1, 1960 in the Federal Logistics Information System (FLIS). This NSN replaces 1 stock number, 2840009665034.
There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 13 suppliers. Today, 13 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 13 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 Nov 28, 2018. There have been 3 contracts issued for this part number, with 3 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: SPE4A719C0102, SPE4A719C0102, SPE4A719C0102, SPE4A719C0102, SPE4A719C0102. The total value of the awarded contracts has been US$ 1,115,175.00.
This NSN is somewhat common among different platforms, belonging to 2 different weapons systems.
There has been very little 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 Aug 02, 2005, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 77777. 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 2840009188406 does not contain precious metals.
This information was last updated on Jul 01, 2025.