NSN 5360-00-699-8990, 5360006998990
Cancelled -> Replaced by 2920006964468

Federal Supply Classification: FSC 5360 - Coil, Flat, Leaf, and Wire Springs
National Item Identification Number: NIIN 006998990
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 5360-00-699-8990

National Stock Number (NSN) 5360-00-699-8990, or NIIN 006998990, (spring,helical,torsion) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 2 stock numbers: 2920001435155, 2920006964468.

There are 12 manufacturer part numbers associated with this NSN. 8 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 16 suppliers. Today, 7 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 5 suppliers are 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 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 5360006998990 contains an unknown precious metal.

This information was last updated on Aug 01, 2025.

Technical Characteristics

HOOK RADIUS: (AXMC) 0.396 INCHES MAXIMUM BOTH ENDS
END LENGTH FROM SECOND BEND TO THIRD BEND OR END: (CXTP) 0.396 INCHES MAXIMUM SECOND END
HOOK OPENING WIDTH: (AAUF) 0.284 INCHES MAXIMUM SECOND END
HOOK RADIUS: (AXMC) 0.376 INCHES MINIMUM FIRST END
END LENGTH FROM SECOND BEND TO THIRD BEND OR END: (CXTP) 0.376 INCHES MINIMUM FIRST END
MATERIAL: (MATT) STEEL OVERALL
END ANGULAR RELATIONSHIP: (AXMH) ENDS PARALLEL ONE TO OTHER
COIL HELIX DIRECTION: (AXLH) RIGHT-HAND
COIL QUANTITY: (APCN) 7
END LENGTH FROM SECOND BEND TO THIRD BEND OR END: (CXTP) UNABLE TO DECODE
END STYLE: (ABQK) UNABLE TO DECODE
HOOK OPENING WIDTH: (AAUF) UNABLE TO DECODE
HOOK RADIUS: (AXMC) UNABLE TO DECODE
INSIDE DIAMETER: (AARX) 1.375 INCHES NOMINAL
MATERIAL: (MATT) UNABLE TO DECODE
SPRING FREE LENGTH: (AGEK) 1.666 INCHES NOMINAL
SPRING FREE OUTSIDE DIAMETER: (AXLQ) 1.870 INCHES NOMINAL
STYLE DESIGNATOR: (STYL) SINGLE TORSION LEFT HAND
HOOK OPENING WIDTH: (AAUF) 0.190 INCHES MINIMUM FIRST END
END STYLE: (ABQK) CURVED END OVERALL