NSN 5360-00-312-4204, 5360003124204
SPRING,HELICAL,TORSION

Federal Supply Classification: FSC 5360 - Coil, Flat, Leaf, and Wire Springs
National Item Identification Number: NIIN 003124204
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 5360-00-312-4204

National Stock Number (NSN) 5360-00-312-4204, or NIIN 003124204, (spring,helical,torsion) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 54 manufacturer part numbers associated with this NSN. 54 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over 5 years.

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: Not established. Not established.

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 5360003124204 contains an unknown precious metal.

This information was last updated on Aug 01, 2025.

Technical Characteristics

END STYLE: (ABQK) UNABLE TO DECODE
HOOK RADIUS: (AXMC) UNABLE TO DECODE
COIL HELIX DIRECTION: (AXLH) RIGHT-HAND OR LEFT-HAND
COIL QUANTITY: (APCN) 6-7/8
END ANGULAR RELATIONSHIP: (AXMH) ENDS PARALLEL ONE TO OTHER
END STYLE: (ABQK) CURVED END SECOND END
END STYLE: (ABQK) STRAIGHT BEND END (LEFT) FIRST END
END LENGTH FROM FIRST BEND TO SECOND BEND OR END: (CXTN) 0.188 INCHES NOMINAL OVERALL
END LENGTH: (CXTH) 0.406 INCHES NOMINAL BOTH ENDS
HOOK OPENING WIDTH: (AAUF) 0.016 INCHES NOMINAL OVERALL
HOOK RADIUS: (AXMC) 0.047 INCHES NOMINAL OVERALL
INSIDE DIAMETER: (AARX) 0.438 INCHES NOMINAL
MATERIAL: (MATT) COPPER ALLOY 511 OVERALL
SPRING FREE LENGTH: (AGEK) 0.250 INCHES NOMINAL
SPRING FREE OUTSIDE DIAMETER: (AXLQ) 0.502 INCHES NOMINAL
STYLE DESIGNATOR: (STYL) SINGLE TORSION LEFT HAND
HOOK OPENING WIDTH: (AAUF) UNABLE TO DECODE
END LENGTH FROM FIRST BEND TO SECOND BEND OR END: (CXTN) UNABLE TO DECODE
END LENGTH: (CXTH) UNABLE TO DECODE
MATERIAL: (MATT) UNABLE TO DECODE