National Stock Number (NSN) 4810-01-025-2899, or NIIN 010252899, (diaphragm,actuator valve,special) was assigned July 29, 1976 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. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 3 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Apr 12, 2019. There have been 4 contracts issued for this part number, with 14 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE4AX19F2953, SPE4AX19F0250, SPM4AX13D9402, SPM4AX13D9402, SPM74002D9719. The total value of the awarded contracts has been US$ 52,989.69.
This NSN is somewhat common among different platforms, belonging to 6 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 Jul 02, 2005, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 40088. [AN ITEM CONSTRUCTED OF ONE OR MORE LAYERS OF THIN FLEXIBLE MATERIAL, EITHER LAMINATED OR SEPARATED, DESIGNED TO FORM A TIGHT SEAL BETWEEN THE CHAMBERS OF A VALVE, AND TO TRANSMIT PRESSURE INDUCTED MOTION TO A VALVE DISK EITHER DIRECTLY OR THROUGH A MECHANICAL LINKAGE. THE SURFACE OF THE ITEM MUST BE FORMED OR MOLDED TO HAVE A BEADED OR ROLLED EDGE, RIBS OR ANY OTHER RAISED SURFACES. THE ITEM MAY CONTAIN BOLT HOLES AND/OR CENTER HOLES. EXCLUDES DIAPHRA GM, VALVE, FLAT AND GASKET.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4810010252899 does not contain precious metals.
This NSN is associated to Schedule B 8481909090: parts of taps, cocks, valves and similar appliances, nesoi. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 332911: industrial valve manufacturing.
This information was last updated on Jun 01, 2025.