NSN 5360-00-533-6188, 5360005336188
SPRING,HELICAL,TORSION

Federal Supply Classification: FSC 5360 - Coil, Flat, Leaf, and Wire Springs
National Item Identification Number: NIIN 005336188
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 5360-00-533-6188

National Stock Number (NSN) 5360-00-533-6188, or NIIN 005336188, (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. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. 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.

This NSN is somewhat common among different platforms, belonging to 2 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: 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 5360005336188 contains an unknown precious metal.

This information was last updated on Jul 01, 2025.

Technical Characteristics

COIL HELIX DIRECTION: (AXLH) LEFT-HAND
COIL QUANTITY: (APCN) 7-7/8
END LENGTH FROM SECOND BEND TO THIRD BEND OR END: (CXTP) 0.125 INCHES MINIMUM FIRST END
END LENGTH FROM SECOND BEND TO THIRD BEND OR END: (CXTP) 0.188 INCHES MAXIMUM SECOND END
END STYLE: (ABQK) CURVED END SECOND END
END STYLE: (ABQK) SMALL OFFSET HOOK AT SIDE FIRST END
HOOK OPENING WIDTH: (AAUF) 0.469 INCHES NOMINAL FIRST END
HOOK OPENING WIDTH: (AAUF) 0.500 INCHES NOMINAL SECOND END
HOOK RADIUS: (AXMC) 0.141 INCHES NOMINAL SECOND END
HOOK RADIUS: (AXMC) 0.175 INCHES NOMINAL FIRST END
INSIDE DIAMETER: (AARX) 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION: (MDCL) AMS 5688 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL: (MATT) STEEL COMP 302 OVERALL
SPRING FREE LENGTH: (AGEK) 0.781 INCHES MINIMUM AND 0.844 INCHES MAXIMUM
SPRING FREE OUTSIDE DIAMETER: (AXLQ) 0.685 INCHES MINIMUM AND 0.705 INCHES MAXIMUM
STYLE DESIGNATOR: (STYL) SINGLE TORSION LEFT HAND