National Stock Number
4820-00-623-8690
National Stock Number (NSN) 4820-00-623-8690, or NIIN 006238690, (diaphragm,actuator valve,special shaped) was assigned March 3, 1975 in the Federal Logistics Information System (FLIS). NIIN 006238690 was cancelled on January 2, 2018, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 4820011491122. This NSN does not replace any other NSNs.
There are 3 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 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 Mar 04, 2014. There have been 2 contracts issued for this part number, with 2 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE7MC14M4193, SPE7MC14M3472. The total value of the awarded contracts has been US$ 700.00.
This NSN is somewhat common among different platforms, belonging to 2 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 Jan 01, 2021, 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) 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 4820006238690 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.