NSN 5360-00-406-5160, 5360004065160
SPRING,HELICAL,TORSION

Federal Supply Classification: FSC 5360 - Coil, Flat, Leaf, and Wire Springs
National Item Identification Number: NIIN 004065160
Codification Country: United States
Item Name Code: INC 04228
Criticality: (X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code: (N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.

Availability: Readily Available Qualified Suppliers: Currently qualifying suppliers

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DLMS^® Summary

National Stock Number 5360-00-406-5160

National Stock Number (NSN) 5360-00-406-5160, or NIIN 004065160, (spring,helical,torsion) was assigned April 15, 1970 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 3 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 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, with the most recent procurement date of Jan 27, 2015. There have been 2 contracts issued for this part number, with 2 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPE5EM15M0458, SPM5E214M0539. The total value of the awarded contracts has been US$ 1,047.84.

This NSN is somewhat common among different platforms, belonging to 4 different weapons systems.

There has been very little 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 Apr 12, 2013, 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 or the rights to use the data needed to purchase this part from additional sources are not owned by the Government and it has been determined that it is uneconomical to purchase them. Valid AMCs: 1, 2, 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 04228. [AN OPEN- OR CLOSE-WOUND COIL SPRING, CONSISTING OF ONE OR MORE HELICAL COILS WOUND FROM DIFFERENT SHAPES AND TYPES OF MATERIAL AND FINISHED AT THE ENDS, DESIGNED TO EXERT PRESSURE IN A ROTATING DIRECTION AROUND THE COIL AXIS. EXCLUDES:SPRINGS DESIGNED FOR THERMAL ACTUATION (SPRINGS IN WHICH THE TORSION FORCES ARE COUNTERACTED BY CHANGES IN TEMPERATURE) AND 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 5360004065160 contains an unknown precious metal.

This information was last updated on Jul 01, 2025.

Technical Characteristics

END ANGULAR RELATIONSHIP: (AXMH) ENDS ANGLED ONE TO OTHER
COIL HELIX DIRECTION: (AXLH) LEFT-HAND
COIL QUANTITY: (APCN) 4-5/8
END LENGTH: (CXTH) 1.011 INCHES NOMINAL SECOND END
END LENGTH: (CXTH) 1.386 INCHES NOMINAL FIRST END
END LENGTH FROM COIL AXIS TO FIRST BEND: (CXTM) 0.803 INCHES NOMINAL SECOND END
END LENGTH FROM FIRST BEND TO SECOND BEND OR END: (CXTN) 0.375 INCHES NOMINAL SECOND END
END STYLE: (ABQK) EXTENDED EYE END FIRST END
END STYLE: (ABQK) PARALLEL END SECOND END
END TANGENT ANGLE: (CXTS) 65.0 DEGREES NOMINAL
HOOK OPENING WIDTH: (AAUF) 0.607 INCHES NOMINAL FIRST END
HOOK RADIUS: (AXMC) 0.188 INCHES NOMINAL FIRST END
INSIDE DIAMETER: (AARX) 0.585 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATION: (MDCL) SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL: (MATT) STEEL COMP 302 OVERALL
SPRING FREE LENGTH: (AGEK) 0.625 INCHES NOMINAL
SPRING FREE OUTSIDE DIAMETER: (AXLQ) 0.719 INCHES NOMINAL
STYLE DESIGNATOR: (STYL) SINGLE TORSION LEFT HAND