National Stock Number
4510-00-253-1168
National Stock Number (NSN) 4510-00-253-1168, or NIIN 002531168, (lever assembly,water closet tank) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 4510008899761.
There are 6 manufacturer part numbers associated with this NSN. 4 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 6 suppliers. Today, 3 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 Nov 09, 2018. There have been 5 contracts issued for this part number, with 5 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 3 different suppliers. The last contract numbers awarded were: SPE8E819P0148, SPE8E816V0842, SPE8E814V1564, SPM8E012V1785, SPM8E307M0483. The total value of the awarded contracts has been US$ 10,302.84.
There has been a small amount of 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 Apr 25, 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) 08503. [A MANUALLY OPERATED DEVICE CONSISTING OF AN ARM AND LEVER HANDLE WHICH, WHEN CONNECTED TO A LOW STYLE WATER CLOSET TANK, ACTIVATES A SERIES OF LIFT WIRES WHICH RAISES THE FLUSH VALVE BALL ALLOWING THE WATER TO PASS INTO THE CLOSET BOWL.]. 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 4510002531168 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.