National Stock Number
4820-01-181-6621
National Stock Number (NSN) 4820-01-181-6621, or NIIN 011816621, (valve,ball) was assigned June 13, 1984 in the Federal Logistics Information System (FLIS). NIIN 011816621 was cancelled on September 2, 2015, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 4820012263257. This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 3 suppliers. Today, one supplier is listed as an Active supplier 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 Jan 21, 2015. 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: SPE7M415V0710. The total value of the awarded contracts has been US$ 280.12.
This NSN is unique to one weapons system.
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 Dec 09, 2020, 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) 20962. [A MULTI-PORTED, NONLUBRICATED VALVE DESIGNED TO PROVIDE STRAIGHT THROUGH FLOW OR ABILITY TO DIRECT A NUMBER OF FLOWS OR PRESSURE THROUGH A SINGLE VALVE. THE FLOW IS CONTROLLED BY THE ROTATION OF A PORTED BALL WITHIN A SUITABLE PORTED SEAT(S). THE BALL IS USUALLY ENGAGED BY A STEM. IT IS NORMALLY OPERATED IN AN OPEN OR CLOSED POSITION. EXCLUDES:VALVE, CHECK.]. 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 4820011816621 does not contain precious metals.
This information was last updated on Jul 01, 2025.