National Stock Number
1660-00-052-5506
National Stock Number (NSN) 1660-00-052-5506, or NIIN 000525506, (cap assy,lox valve) was assigned January 3, 1968 in the Federal Logistics Information System (FLIS). This NSN replaces 1 stock number, 1660007547902.
There are 9 manufacturer part numbers associated with this NSN. 5 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 6 suppliers. Today, 5 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, there are no suppliers that 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 a year. There have been 16 contracts issued for this part number, with 32 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPE4A724F1831, SPE4A723F0325, SPE4A721F5561, SPE4A720F2637, SPE4A720F0864. The total value of the awarded contracts has been US$ 115,463.68.
This NSN is very common among different weapons systems, belonging to 26 different platforms.
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 02, 2006, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.
This NSN is assigned to Item Name Code (INC) 77777. This item is a Flight Safety Critical Aircraft Part (FSCAP). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 1660000525506 does not contain precious metals.
This information was last updated on Jul 01, 2025.