PartsTable TECHNICAL DATA SHEET
OCTOBER 2026Technical Data Sheet

139C7823Spring,helical,torsion

General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems · NSN 5360-00-580-9519 · FSC 5360 · Coil, Flat, Leaf, and Wire Springs
Government record, cited
NSN 5360-00-580-9519 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-580-9519. Primary manufacturer part number: 139C7823.
Features
  • Spring,helical,torsion — FSC 5360
  • Spring Free Outside Diameter: 1.173 INCHES NOMINAL IN
  • Surface Treatment Document and Classification: MIL-STD-171 FINISH NO. 5.3.1.2 OR 5.3.2.2 MIL STD SINGLE TREATMENT RESPONSE OVERALL
  • End Style: STRAIGHT BEND END (RIGHT) SECOND END
  • End Style: STRAIGHT BEND END (LEFT) FIRST END
  • End Length: 2.143 INCHES MINIMUM AND 2.377 INCHES MAXIMUM BOTH ENDS IN
  • Center Section Width: 1.430 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN
  • Supplementary Features: LOOP OFF-CENTERED WITH AN INSIDE DIA. OF 0.202 IN. MIN. AND 0.266 IN. MAX. AN OUTSIDE DIA. OF 0.434 IN. IN
Identification
  • NSN: 5360-00-580-9519
  • NIIN: 005809519
  • FSC: 5360 — Coil, Flat, Leaf, and Wire Springs
  • FSG: 53 — Hardware and Abrasives
  • Primary part number: 139C7823
  • Manufacturer: General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems
General Description

The Spring,helical,torsion, cataloged under National Stock Number 5360-00-580-9519, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The primary manufacturer of record is General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems. Government technical data includes 20 specifications, cited from the U.S. Government catalog. This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5360-00-580-9519
Primary Part Number139C7823
Item NameSpring,helical,torsion
FSC / FSG5360 / 53 — Coil, Flat, Leaf, and Wire Springs
ManufacturerGeneral Dynamics-Ots, Inc. Div Ordnance and Tactical Systems
StatusACTIVE
Spring Free Outside Diameter1.173 INCHES NOMINAL IN
Surface Treatment Document and ClassificationMIL-STD-171 FINISH NO. 5.3.1.2 OR 5.3.2.2 MIL STD SINGLE TREATMENT RESPONSE OVERALL
End StyleSTRAIGHT BEND END (RIGHT) SECOND END
End StyleSTRAIGHT BEND END (LEFT) FIRST END
End Length2.143 INCHES MINIMUM AND 2.377 INCHES MAXIMUM BOTH ENDS IN
Center Section Width1.430 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN
Supplementary FeaturesLOOP OFF-CENTERED WITH AN INSIDE DIA. OF 0.202 IN. MIN. AND 0.266 IN. MAX. AN OUTSIDE DIA. OF 0.434 IN. IN
Style DesignatorSINGLE TORSION RIGHT HAND
Material Document and ClassificationQQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Spring Free Length1.490 INCHES NOMINAL IN
Coil Axis to Center Section Distance2.143 INCHES MINIMUM AND 2.377 INCHES MAXIMUM IN
Inside Diameter0.973 INCHES NOMINAL IN
End Length From First Bend to Second Bend or End0.550 INCHES NOMINAL SECOND END IN
End Length From First Bend to Second Bend or End0.960 INCHES NOMINAL FIRST END IN
Coil Quantity5-1/2
Surface TreatmentPHOSPHATE OVERALL
Coil Helix DirectionRIGHT-HAND OR LEFT-HAND
Center StyleSQUARE TYPE
MaterialSTEEL UNS K08500 OVERALL
End Angular RelationshipEND W/LH HELIX OF COIL ANGLED TO CENTER SECTION AND END W/RH HELIX OF COIL ANGLED TO CENTER SECTION
Lifecycle & Compliance
Acquisition StatusACTIVE
HazardNot stated in government record
Cross-Reference Index
Part NumberManufacturer
139C7823 Pioneer Industries, Llc (USA)
5360PL1855064 Jednolity Indeks Materialowy - Uniform Material Index (POL)
139C7823 R and D Welding and Machine Inc (USA)
139C7823 Connecticut Spring & Stamping Corporation the Dba Connecticut Spring & Stamping Corp (USA)
139C7823 PRIMARY General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems (USA)
Other items in FSC 5360 — Coil, Flat, Leaf, and Wire Springs
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5360-00-001-1842
SPRING,HELICAL,COMPRESSION
5360-00-001-2010
SPRING,HELICAL,EXTENSION
5360-00-001-4650
SPRING,HELICAL,COMPRESSION
5360-00-001-4664
SPRING,CONSTANT TO

Frequently Asked Questions

What is NSN 5360-00-580-9519?

NSN 5360-00-580-9519 is a Spring,helical,torsion, manufactured by General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems, classified under FSC 5360 (Coil, Flat, Leaf, and Wire Springs). Status: active.

What are the part numbers for NSN 5360-00-580-9519?

NSN 5360-00-580-9519 has 5 cross-referenced part numbers: 139C7823 (Pioneer Industries, Llc), 5360PL1855064 (Jednolity Indeks Materialowy - Uniform Material Index), 139C7823 (R and D Welding and Machine Inc), 139C7823 (Connecticut Spring & Stamping Corporation the Dba Connecticut Spring & Stamping Corp), 139C7823 (General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems).

What are the specifications of 139C7823?

Key specifications for 139C7823: Spring Free Outside Diameter: 1.173 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-STD-171 FINISH NO. 5.3.1.2 OR 5.3.2.2 MIL STD SINGLE TREATMENT RESPONSE OVERALL; End Style: STRAIGHT BEND END (RIGHT) SECOND END; End Style: STRAIGHT BEND END (LEFT) FIRST END. 20 specifications are documented in the U.S. Government catalog.

Is NSN 5360-00-580-9519 hazardous material?

Hazard status is not stated in the government record for NSN 5360-00-580-9519 — no DOT hazard class, UN number, or hazard classification field is present in the cited data. This page does not assert an item is or is not hazardous.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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