National Stock Number
4820-01-009-4112
National Stock Number (NSN) 4820-01-009-4112, or NIIN 010094112, (disk and diaphragm assembly,regu) was assigned September 11, 1975 in the Federal Logistics Information System (FLIS). This NSN replaces 4 stock numbers: 4820011589316, 5310012055472, 5310012046583, 4820010131856.
There are 4 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 one supplier. Today, there are no suppliers listed as an Active supplier for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is very common among different weapons systems, belonging to 34 different platforms.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jan 01, 2013, 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) 77777. 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 4820010094112 does not contain precious metals.
This NSN is associated to Schedule B 7403210000: unwrought copper-zinc based alloys (brass). The Schedule B End Use is listed as copper.
This information was last updated on Jul 01, 2025.