National Stock Number
1630-01-478-4231
National Stock Number (NSN) 1630-01-478-4231, or NIIN 014784231, (piston,hydraulic brake) was assigned September 12, 2000 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
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 one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over a year. There have been 20 contracts issued for this part number, with 20 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE4A624F015G, SPE4A624F6752, SPE4A623F480Z, SPE4A623F480Z, SPE4A623F008W. The total value of the awarded contracts has been US$ 13,763,234.80.
This NSN is unique to one weapons system.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Oct 20, 2020, 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 data or the rights to use the data needed to purchase this part from additional sources are not owned by the Government and it has been determined that it is uneconomical to purchase them. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 36146. [A METALLIC OR NONMETALLIC ITEM DESIGNED TO FUNCTION IN A WHEEL CYLINDER OR CALIPER OF A HYDRAULIC BRAKE SYSTEM.]. 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 1630014784231 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.