National Stock Number (NSN) 2530-00-374-2231, or NIIN 003742231, (cup,hydraulic brake cylinder) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 5 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 5 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 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 Jun 14, 2016. There have been 3 contracts issued for this part number, with 3 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE7L316V7923, SPE7L315V3173, SPE7LX14M0002, SPE7LX14M0002. The total value of the awarded contracts has been US$ 1,374.00.
This NSN is unique to one weapons system.
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 18, 2014, 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 needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 11359. [A CIRCULAR-SHAPED ITEM OF MOLDED SYNTHETIC OR NATURAL RUBBER DESIGNED SPECIFICALLY TO SEAL FLUID PRESSURE AND PREVENT LEAKAGE WITHIN THE CYLINDERS OF A VEHICULAR HYDRAULIC BRAKE SYSTEM. IT IS A COMPONENT OF CYLINDER ASSEMBLY, HYDRAULIC BRAKE, MASTER OR CYLINDER ASSEMBLY, HYDRAULIC BRAKE, WHEEL. EXCLUDES:CUP, COMPRESSION.]. 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 2530003742231 contains an unknown precious metal.
This NSN is associated to Schedule B 8708300050: brakes and servo-brakes and parts, of motor vehicles of headings 8701 to 8705. The Schedule B End Use is listed as other parts and accessories of vehicles. NAICS classification category 336340: motor vehicle brake system manufacturing.
This information was last updated on May 01, 2025.