NSN 5360-00-468-1981, 5360004681981
SPRING,HELICAL,COMPRESSION

Federal Supply Classification: FSC 5360 - Coil, Flat, Leaf, and Wire Springs
National Item Identification Number: NIIN 004681981
Codification Country: United States
Item Name Code: INC 04226
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 5360-00-468-1981

National Stock Number (NSN) 5360-00-468-1981, or NIIN 004681981, (spring,helical,compression) 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 185 manufacturer part numbers associated with this NSN. 2 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.

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

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) 04226. [AN OPEN COILED SPRING, WOUND IN VARIOUS FORMS AND FROM DIFFERENT SHAPES AND TYPES OF MATERIALS AND FINISHED AT THE ENDS, DESIGNED TO PROVIDE RESISTANCE TO COMPRESSION FORCES. EXCLUDES:SPRINGS DESIGNED FOR THERMAL ACTUATION (SPRINGS IN WHICH THE TORSION FORCES ARE DESIGNED TO BE 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 5360004681981 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) 6-3/10
END STYLE: (ABQK) SPRING END,SQUARED AND GROUND BOTH ENDS
INSIDE DIAMETER: (AARX) 0.334 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATION: (MDCL) SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL: (MATT) STEEL COMP 302 OVERALL
SPRING DEFLECTION RATE: (AXLP) 9.670 POUNDS PER INCH MINIMUM AND 11.670 POUNDS PER INCH MAXIMUM
SPRING FREE LENGTH: (AGEK) 0.678 INCHES NOMINAL
SPRING FREE OUTSIDE DIAMETER: (AXLQ) 0.396 INCHES MINIMUM AND 0.416 INCHES MAXIMUM
SPRING SOLID LENGTH: (AXJQ) 0.240 INCHES NOMINAL
STYLE DESIGNATOR: (STYL) CYLINDRICAL
END STYLE: (ABQK) E4 SPRING END,SQUARED AND GROUND BOTH ENDS
END STYLE: (ABQK) RIGHT HAND SQUARED AND GROUND BOTH ENDS