National Stock Number
5985-01-260-4309
National Stock Number (NSN) 5985-01-260-4309, or NIIN 012604309, (circulator,radio frequency) was assigned July 30, 1987 in the Federal Logistics Information System (FLIS). NIIN 012604309 was cancelled on December 5, 2019, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 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.
This part number has not been procured by the US Government in over 5 years.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Oct 25, 2020, this NSN's acquisition method was noted as: Acquire only from the prime contractor although the engineering data identifies the Commercial and Government Entity Code (CAGE) and part number of a source other than the prime contractor. 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) 31842. [A WAVEGUIDE, STRIPLINE, OR COAXIAL COMPONENT HAVING THREE OR MORE PORTS (TERMINALS), SO ARRANGED THAT ENERGY ENTERING ONE PORT IS TRANSMITTED TO THE NEXT ADJACENT PORT IN A PARTICULAR DIRECTION WHILE DECOUPLING THE ENERGY FROM ALL OTHER PORTS. EXCLUDES:SWITCH, RADIO FREQUENCY TRANSMISSION LINE; AND SWITCH, WAVEGUIDE.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 5985012604309 does not contain precious metals.
This information was last updated on Aug 01, 2025.