National Stock Number
4210-01-521-1691
National Stock Number (NSN) 4210-01-521-1691, or NIIN 015211691, (reducer,hose,fire fighting) was assigned June 13, 2004 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. 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 one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number is actively being procured by the US Government, with procurement history within the last 90 days. There have been 17 contracts issued for this part number, with 20 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: SPE8E625F0718, SPE8E625F0473, SPE8E623F0419, SPE8E622F1242, SPE8E622F0339. The total value of the awarded contracts has been US$ 233,432.88.
This NSN is somewhat common among different platforms, belonging to 3 different weapons systems.
The 24 month forecast from the US Government for this part number has high volatility, with an estimated forecasted value of US$ 42,398. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Aug 02, 2020, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 51063. [A STRAIGHT FIRE HOSE FITTING HAVING A DIFFERENT SIZE CONNECTION ON EACH END. IT IS DESIGNED TO JOIN TWO FIRE HOSES OF DIFFERENT SIZES. EXCLUDES:BUSHING (AS MODIFIED).]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. 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 4210015211691 does not contain precious metals.
This information was last updated on Jun 01, 2025.