National Stock Number (NSN) 5990-00-021-3660, or NIIN 000213660, (synchro,receiver) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 6105003185817.
There are 3 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 6 suppliers. Today, one supplier is listed as an Active supplier 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, with the most recent procurement date of Sep 18, 2012. There have been 3 contracts issued for this part number, with 3 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPM7M912V9553, SPM7M012M5001, SPM7M911V1899. The total value of the awarded contracts has been US$ 54,350.00.
This NSN is somewhat common among different platforms, belonging to 10 different weapons systems.
There has been a small amount of 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 Feb 14, 2012, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The data needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 02072. [A SYNCHRO CONSISTING OF A STATOR AND ROTOR INDUCTIVELY COUPLED. THE ROTOR IS FREE TO TURN IN ACCORDANCE WITH THE ELECTRICAL INPUT FROM A TRANSMITTER SYNCHRO OR A DIFFERENTIAL SYNCHRO. DOES NOT INCLUDE VARIABLE RESISTORS, GONIOMETERS, VARIABLE TRANSFORMERS, OR ITEMS WITH DIALS.]. 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 5990000213660 does not contain precious metals.
This NSN is associated to Schedule B 9014900000: parts & accessories for direction finding compasses and other navigational instruments and appliances. The Schedule B End Use is listed as marine engines, parts. NAICS classification category 334511: search, detection, navigation, guidance, aeronautical, and nautical system and instrument manufacturing.
This information was last updated on Aug 01, 2025.