National Stock Number (NSN) 4210-00-255-0234, or NIIN 002550234, (siamese connection,fire hose) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 4820013298415.
There are 13 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 9 suppliers. Today, 8 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 6 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
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 26 contracts issued for this part number, with 41 awards given. There is moderate competition for this NSN. The US Government has awarded contracts to 6 different suppliers. The last contract numbers awarded were: SPE8E925P0969, SPE8E925P0790, SPE8E925P0790, SPE8E924F0070, SPE8E924F0070. The total value of the awarded contracts has been US$ 10,274,970.33.
This NSN is very common among different weapons systems, belonging to 44 different platforms.
There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. The 24 month forecast from the US Government for this part number has high volatility, with an estimated forecasted value of US$ 550,450. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 15, 2015, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.
This NSN is assigned to Item Name Code (INC) 03500. [A CONNECTION DESIGNED FOR UNITING TWO OR MORE FIRE HOSE LINES TO INCRESE THE VOLUME OF DISCHARGE, OR FOR DIVIDING A FIRE HOSE LINE TO INCREASE THE NUMBER OF OUTLETS. END CONNECTIONS MAY INCLUDE INTEGRAL VALVES, BALL, CLAPPER, PLUG AND THE LIKE.]. 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 4210002550234 contains an unknown precious metal.
This NSN is associated to Schedule B 8708998175: parts and accessories, for motor vehicles of headings 8701 to 8705, nesoi. The Schedule B End Use is listed as other parts and accessories of vehicles.
This information was last updated on Aug 01, 2025.