PartsTable TECHNICAL DATA SHEET
AUGUST 2026Technical Data Sheet

12W9058-10Spring,helical,torsion

Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company · NSN 5360-00-404-4975 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-404-4975 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-404-4975. Primary manufacturer part number: 12W9058-10.
Features
  • Spring,helical,torsion — FSC 5360
  • Inside Diameter: 0.640 INCHES NOMINAL IN
  • Spring Free Length: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
  • Coil Quantity: 4-69/100
  • End Length From Second Bend to Third Bend or End: 0.320 INCHES NOMINAL SECOND END IN
  • Hook Radius: 0.130 INCHES NOMINAL SECOND END IN
  • End Angular Relationship: ENDS ANGLED ONE TO OTHER
  • End Style: MACHINE LOOP END SECOND END
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
General Description

The Spring,helical,torsion, cataloged under National Stock Number 5360-00-404-4975, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5360-00-404-4975
Primary Part Number12W9058-10
Item NameSpring,helical,torsion
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Lockheed Martin Aeronautics Company
StatusACTIVE
Inside Diameter0.640 INCHES NOMINAL IN
Spring Free Length0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
Coil Quantity4-69/100
End Length From Second Bend to Third Bend or End0.320 INCHES NOMINAL SECOND END IN
Hook Radius0.130 INCHES NOMINAL SECOND END IN
End Angular RelationshipENDS ANGLED ONE TO OTHER
End StyleMACHINE LOOP END SECOND END
Spring Free Outside Diameter0.780 INCHES NOMINAL IN
End StyleONE HOOK END FIRST END
Style DesignatorSINGLE TORSION LEFT HAND
Coil Helix DirectionLEFT-HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Cross-Reference Index
Part NumberManufacturer
12W9058-10 PRIMARY Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA)
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Frequently Asked Questions

What is NSN 5360-00-404-4975?

NSN 5360-00-404-4975 is a Spring,helical,torsion, manufactured by Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-00-404-4975?

NSN 5360-00-404-4975 has 1 cross-referenced part number: 12W9058-10 (Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company).

What are the specifications of 12W9058-10?

Key specifications for 12W9058-10: Inside Diameter: 0.640 INCHES NOMINAL IN; Spring Free Length: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN; Coil Quantity: 4-69/100; End Length From Second Bend to Third Bend or End: 0.320 INCHES NOMINAL SECOND END IN. 11 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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