National Stock Number
5360-00-383-7971
National Stock Number (NSN) 5360-00-383-7971, or NIIN 003837971, (spring,helical,extension) was assigned March 25, 1974 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 8 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 3 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 5 years.
This NSN is somewhat common among different platforms, belonging to 9 different weapons systems.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Sep 02, 2005, this NSN's acquisition method was noted as: Suitable for competitive acquisition for the first time. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.
This NSN is assigned to Item Name Code (INC) 04227. [AN OPEN- OR CLOSE-COILED SPRING WOUND IN VARIOUS FORMS AND FROM DIFFERENT SHAPES AND TYPES OF MATERIALS AND FINISHED AT THE ENDS, DESIGNED IN SUCH A WAY AS TO PROVIDE RESISTANCE TO PULLING FORCES. THE CLOSE-COILED SPRINGS MAY INCORPORATE THE SPECIAL FEATURE OF INITIAL TENSION CREATED BETWEEN THE COILS WHEN WOUND, REQUIRING AN INITIAL LOAD TO BE APPLIED TO SEPARATE THEM. EXCLUDES:SPRING,REINFORCING HOSE.]. 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 5360003837971 does not contain precious metals.
This NSN is associated to Schedule B 7320905030: springs of iron or steel wire, nesoi. The Schedule B End Use is listed as finished metal shapes.
This information was last updated on Aug 01, 2025.