National Stock Number
4820-01-164-1729
National Stock Number (NSN) 4820-01-164-1729, or NIIN 011641729, (valve,ball) was assigned October 13, 1983 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 4820011921962.
There are 4 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, 2 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 22, 2019. 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: SPE7MC19P4106, SPE7M019V6585. The total value of the awarded contracts has been US$ 753.94.
This NSN is somewhat common among different platforms, belonging to 4 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 May 22, 2008, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The annual buy value of this part falls below the screening threshold of $10,000 but it has been screened for known source(s). (NOTE: This code shall not be used when screening parts entering the inventory. It shall not be assigned in preference to or supersede any other AMSC.) Valid AMCs: 1, 2, 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 4820011641729 does not contain precious metals.
This NSN is associated to Schedule B 8481803070: ball type taps, cocks and valves of steel, hand operated. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 332911: industrial valve manufacturing.
This information was last updated on Jul 01, 2025.