NSN 5360-00-017-3442, 5360000173442
SPRING,HELICAL,TORSION

Federal Supply Classification: FSC 5360 - Coil, Flat, Leaf, and Wire Springs
National Item Identification Number: NIIN 000173442
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 5360-00-017-3442

National Stock Number (NSN) 5360-00-017-3442, or NIIN 000173442, (spring,helical,torsion) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There is only one manufacturer part number associated with this NSN. One 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, 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.

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 5360000173442 contains an unknown precious metal.

This information was last updated on Aug 01, 2025.

Technical Characteristics

END LENGTH FROM FIRST BEND TO SECOND BEND OR END: (CXTN) 0.093 INCHES MINIMUM AND 0.125 INCHES MAXIMUM OVERALL
END ANGULAR RELATIONSHIP: (AXMH) ENDS ANGLED ONE TO OTHER
COIL HELIX DIRECTION: (AXLH) RIGHT-HAND OR LEFT-HAND
END STYLE: (ABQK) UNABLE TO DECODE
HOOK RADIUS: (AXMC) UNABLE TO DECODE
INSIDE DIAMETER: (AARX) 0.072 INCHES MINIMUM AND 0.082 INCHES MAXIMUM
SPRING FREE LENGTH: (AGEK) 0.140 INCHES MINIMUM AND 0.171 INCHES MAXIMUM
SPRING FREE OUTSIDE DIAMETER: (AXLQ) 0.136 INCHES MINIMUM AND 0.146 INCHES MAXIMUM
STYLE DESIGNATOR: (STYL) SINGLE TORSION LEFT HAND
END STYLE: (ABQK) OFFSET HALF LOOP, RIGHT END SECOND END
END STYLE: (ABQK) STRAIGHT BEND END (RIGHT) FIRST END
END LENGTH FROM SECOND BEND TO THIRD BEND OR END: (CXTP) 0.031 INCHES MINIMUM AND 0.093 INCHES MAXIMUM OVERALL
HOOK RADIUS: (AXMC) 0.031 INCHES NOMINAL OVERALL