National Stock Number (NSN) 6635-01-437-0857, or NIIN 014370857, (transducer,supersonic test) was assigned October 4, 1996 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 2 stock numbers: 6635015948451, 6635013789324.
There are 5 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 7 suppliers. Today, 6 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Sep 24, 2019. There have been 9 contracts issued for this part number, with 9 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE4A519V2262, SPE4A619V360M, SPE4A618V111H, SPE4A616V0983, SPE4A616V0983. The total value of the awarded contracts has been US$ 13,239.92.
This NSN is somewhat common among different platforms, belonging to 3 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. The 24 month forecast from the US Government for this part number has high volatility, with an estimated forecasted value of US$ 3,664. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 10, 2019, 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 annual buy value of this part falls below the screening threshold of $10,000 but it has been screened for known source(s). (NOTE: This code shall not be used when screening parts entering the inventory. It shall not be assigned in preference to or supersede any other AMSC.) Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 18685. [AN ITEM SPECIFICALLY DESIGNED TO TRANSMIT SUPERSONIC FREQUENCY WAVE MOTION ENERGY TO ANOTHER ITEM UNDER TEST, AND TO RECEIVE COMPONENTS OF REFLECTED ENERGY, THE CHARACTERISTICS OF WHICH WHEN INTERPRETED ON AN ASSOCIATED INDICATOR, PROVIDES FACILITIES FOR THE DETERMINATION OF FLAWS OR OTHER IRREGULARITIES OF THE ITEM UNDER TEST. DOES NOT INCLUDE THE INDICATOR. SEE ALSO TRANSDUCER, MOTIONAL PICKUP AND DETECTOR, METAL FLAW, ELECTRONIC.]. 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 6635014370857 does not contain precious metals.
This NSN is associated to Schedule B 9027509000: instrument and apparatus for physical or chemical analysis using optical radiations, nesoi. The Schedule B End Use is listed as laboratory testing instruments. NAICS classification category 334516: analytical laboratory instrument manufacturing.
This information was last updated on Aug 01, 2025.