National Stock Number (NSN) 2530-00-433-6884, or NIIN 004336884, (master cylinder power unit) was assigned May 17, 1974 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 3 stock numbers: 2530008481650, 2530011980847, 2530004514690.
There are 11 manufacturer part numbers associated with this NSN. 5 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 6 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 not been procured by the US Government in over 5 years, with the most recent procurement date of Jun 21, 2012. There have been 3 contracts issued for this part number, with 29 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPM7L212V5138, SPM7L212M2957, SPM70002D9707, SPM70002D9707, SPM70002D9707. The total value of the awarded contracts has been US$ 191,819.48.
This NSN is somewhat common among different platforms, belonging to 3 different weapons systems.
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 Jun 02, 2006, 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) 36392. [A DEVICE CONSISTING OF A BRAKE BOOSTER, MASTER CYLINDER, PUSH ROD AND THE LIKE. MAY INCLUDE ELECTRIC MOTOR. IS ACTUATED BY A COMBINATION OF MECHANICAL AND/OR ELECTRIC, VACUUM, AIR AND HYDRAULICS. IT IS DESIGNED TO SUPPLEMENT THE POWER APPLIED TO THE BRAKES BY THE OPERATOR. FOR ITEMS WITHOUT A MASTER CYLINDER SEE BRAKE BOOSTER ASSEMBLY, MASTER CYLINDER.]. 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 2530004336884 does not contain precious metals.
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 Jun 01, 2025.