NSN 5360-00-329-8666, 5360003298666
SPRING,HELICAL,TORSION

Federal Supply Classification: FSC 5360 - Coil, Flat, Leaf, and Wire Springs
National Item Identification Number: NIIN 003298666
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 5360-00-329-8666

National Stock Number (NSN) 5360-00-329-8666, or NIIN 003298666, (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 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 3 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.

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: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) 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 5360003298666 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) RIGHT-HAND OR LEFT-HAND
COIL QUANTITY: (APCN) 1-3/4
END LENGTH: (CXTH) 1.125 INCHES NOMINAL SECOND END
END LENGTH: (CXTH) 1.750 INCHES NOMINAL FIRST END
END LENGTH FROM FIRST BEND TO SECOND BEND OR END: (CXTN) 0.110 INCHES NOMINAL SECOND END
END LENGTH FROM THIRD BEND OR END: (CXTQ) 0.187 INCHES NOMINAL SECOND END
END STYLE: (ABQK) ONE HOOK END FIRST END
END STYLE: (ABQK) RIGHT HAND HELIX SECOND END
INSIDE DIAMETER: (AARX) 0.427 INCHES MINIMUM AND 0.447 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION: (MDCL) EK127,EASTMAN KODAK CO MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIAL: (MATT) STEEL OVERALL
SPRING FREE LENGTH: (AGEK) 0.092 INCHES NOMINAL
SPRING FREE OUTSIDE DIAMETER: (AXLQ) 0.519 INCHES MINIMUM AND 0.539 INCHES MAXIMUM
STYLE DESIGNATOR: (STYL) SINGLE TORSION LEFT HAND