National Stock Number (NSN) 5990-00-457-8940, or NIIN 004578940, (resolver,electrical) was assigned April 30, 1969 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 4 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 suppliers. Today, 3 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 a year. There have been 4 contracts issued for this part number, with 4 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: SPE7M123F6802, SPE7M120P1512, SPE7M518P8512, SPE7M516M9110, SPE7M516M9110. The total value of the awarded contracts has been US$ 226,482.96.
This NSN is somewhat common among different platforms, belonging to 2 different weapons systems.
There has been a small amount of demand for this national stock number. Globally, demand for this NSN has originated from 6 countries. The 24 month forecast from the US Government for this part number has high volatility, with an estimated forecasted value of US$ 69,750. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 21, 2013, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 22966. [AN ITEM CONSISTING OF A ROTOR AND A STATOR INDUCTIVELY COUPLED. IT USUALLY HAS TWO ROTOR WINDINGS DISPLACED FROM EACH OTHER BY 90 DEGREES AND TWO STATOR WINDINGS SIMILARLY DISPLACED. THE OUTPUT VOLTAGE(S) IS A TRIGONOMETRIC FUNCTION OF THE INPUT VOLTAGE(S) AND THE ANGULAR DISPLACEMENT OF THE ROTOR WITH RESPECT TO THE STATOR. SEE ALSO SYNCHRO (AS MODIFIED) AND GONIOMETER, ELECTRICAL. EXCLUDES:TRANSOLVER, ELECTRICAL AND POTENTIOMETER SINE/COSINE ELECTRICAL RESOLVERS.]. 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 5990004578940 does not contain precious metals.
This NSN is associated to Schedule B 9018903000: anesthetic instruments and appliances and parts and accessories. The Schedule B End Use is listed as medicinal equipment. NAICS classification category 339112: surgical and medical instrument manufacturing.
This information was last updated on Aug 01, 2025.