National Stock Number
5365-00-404-4161
National Stock Number (NSN) 5365-00-404-4161, or NIIN 004044161, (ring,backup,seal) was assigned January 13, 1972 in the Federal Logistics Information System (FLIS). This NSN replaces 2 stock numbers: 5330014812873, 5330012230337.
There are 4 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 5 suppliers. Today, 4 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, only one supplier is 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 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: SPE4A525V1810, SPE4A025P0515, SPE4A514M7656. The total value of the awarded contracts has been US$ 1,297.44.
This NSN is very common among different weapons systems, belonging to 27 different platforms.
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 Jan 12, 2007, 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 rights to use the data needed to purchase this part from additional sources are not owned by the Government and cannot be purchased. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 77777. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5365004044161 does not contain precious metals.
This information was last updated on Aug 01, 2025.