National Stock Number
5950-00-698-1981
National Stock Number (NSN) 5950-00-698-1981, or NIIN 006981981, (transformer,radio frequency) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 5 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 5 suppliers. Today, 4 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 suppliers are 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 somewhat common among different platforms, belonging to 3 different weapons systems.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jun 02, 2006, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) 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) 00777. [AN ITEM HAVING EITHER A SINGLE TAPPED WINDING (AUTOTRANSFORMER TYPE), OR TWO OR MORE WINDINGS DESIGNED TO FURNISH INDUCTIVE REACTANCE AND/OR TRANSFER ELECTRICAL ENERGY IN CIRCUITS BY MEANS OF A MAGNETIC FIELD. IT IS SO DESIGNED THAT ITS ENTIRE INTENDED RANGE OF OPERATIONS IS ABOVE 20 KILOHERTZ (KILOCYCLES). THE MINIMUM VALUE MAY EXTEND INTO THE AUDIO FREQUENCY RANGE (BELOW 20 KILOHERTZ). IT MAY INCLUDE INTEGRAL CAPACITORS, COILS, RESISTORS, AND ADJUSTABLE TUNING CORES. FOR ITEMS HAVING ONLY TWO ACTIVE TERMINALS SEE COIL, RADIO FREQUENCY. INCLUDES TYPES HAVING WINDINGS WHICH MAY BE MOVED WITH RESPECT TO EACH OTHER. EXCLUDES:TRANSFORMER, DISCRIMINATOR.]. 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 5950006981981 contains an unknown precious metal.
This NSN is associated to Schedule B 8548900100: electrical parts of machinery or apparatus not specified or included elsewhere in chapter 85. The Schedule B End Use is listed as electric apparatus. NAICS classification category 335999: all other miscellaneous electrical equipment and component manufacturing.
This information was last updated on Aug 01, 2025.