National Stock Number
4820-01-185-6721
National Stock Number (NSN) 4820-01-185-6721, or NIIN 011856721, (inner valve assembly) was assigned August 1, 1984 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.
There are 6 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, one supplier is 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, with the most recent procurement date of Dec 15, 2016. There has been one contract issued for this part number, with one award given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE7M417V0453. The total value of the awarded contracts has been US$ 15,622.40.
This NSN is somewhat common among different platforms, belonging to 7 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 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. The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) 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 4820011856721 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 Apr 01, 2025.