National Stock Number
5985-00-004-5557
National Stock Number (NSN) 5985-00-004-5557, or NIIN 000045557, (coupler,rotary,radio frequency) was assigned June 7, 1972 in the Federal Logistics Information System (FLIS). NIIN 000045557 was cancelled on August 24, 2011, 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, 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.
This NSN is assigned to Item Name Code (INC) 00371. [AN ITEM WHICH PROVIDES A MEANS OF TRANSFER OF ELECTRICAL ENERGY BETWEEN TWO COMPONENTS OR SETS, AND WHICH IS SPECIFICALLY DESIGNED TO PERMIT ONE SECTION OF A TRANSMISSION LINE OR WAVEGUIDE TO ROTATE CONTINUOUSLY WITH RESPECT TO ANOTHER, AND STILL MAINTAIN RADIO FREQUENCY CONTINUITY.]. 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 5985000045557 does not contain precious metals.
This information was last updated on Jul 01, 2025.