NSN 5360-00-321-4519, 5360003214519
SPRING,HELICAL,TORSION

Federal Supply Classification: FSC 5360 - Coil, Flat, Leaf, and Wire Springs
National Item Identification Number: NIIN 003214519
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

Manufacture or supply this part?
Join our growing community of certified suppliers.

Let Us Know

CALL ABOUT NSN 5360-00-321-4519

Our client representatives are standing by to help fulfill your request.

+1-321-773-5710

REQUEST QUOTE for 5360-00-321-4519

Have a list that needs to be quoted? Upload it here.

Upload a List

DLMS^® Summary

National Stock Number 5360-00-321-4519

National Stock Number (NSN) 5360-00-321-4519, or NIIN 003214519, (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.

This NSN is fairly common among different weapons systems, belonging to 11 different platforms.

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) 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 5360003214519 contains an unknown precious metal.

This information was last updated on Jul 01, 2025.

Technical Characteristics

END ANGULAR RELATIONSHIP: (AXMH) ENDS PARALLEL ONE TO OTHER
CENTER STYLE: (CXWF) SQUARE TYPE
COIL AXIS TO CENTER SECTION DISTANCE: (AXLX) 0.500 INCHES MINIMUM AND 0.540 INCHES MAXIMUM
COIL HELIX DIRECTION: (AXLH) LEFT-HAND OR RIGHT-HAND
COIL QUANTITY: (APCN) 6
END LENGTH: (CXTH) 0.310 INCHES MINIMUM AND 0.330 INCHES MAXIMUM BOTH ENDS
END LENGTH FROM FIRST BEND TO SECOND BEND OR END: (CXTN) 0.110 INCHES MINIMUM AND 0.130 INCHES MAXIMUM BOTH ENDS
END STYLE: (ABQK) ANGULAR END (LEFT) SECOND END
END STYLE: (ABQK) ANGULAR END (RIGHT) FIRST END
INSIDE DIAMETER: (AARX) 0.130 INCHES MINIMUM AND 0.160 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION: (MDCL) AMS 5673,COMP 17-7PH ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL: (MATT) STEEL COMP 631 OVERALL
SPRING FREE OUTSIDE DIAMETER: (AXLQ) 0.192 INCHES MINIMUM AND 0.222 INCHES MAXIMUM
STYLE DESIGNATOR: (STYL) DOUBLE TORSION, RIGHT AND LEFT HAND