PartsTable TECHNICAL DATA SHEET
AUGUST 2026Technical Data Sheet

R503ALSpring,helical,compression

Leeds and Northrup Co a Unit of General Signal Corp · NSN 5360-00-657-8906 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-657-8906 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-657-8906. Primary manufacturer part number: R503AL.
Features
  • Spring,helical,compression — FSC 5360
  • Material: STEEL OVERALL
  • Inside Diameter: 0.375 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
  • Style Designator: CYLINDRICAL
  • Spring Free Length: 1.500 INCHES NOMINAL IN
  • Surface Treatment: CADMIUM OVERALL
  • Spring Free Outside Diameter: 0.439 INCHES NOMINAL IN
  • Coil Helix Direction: RIGHT-HAND OR LEFT-HAND
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Overall construction
General Description

The Spring,helical,compression, cataloged under National Stock Number 5360-00-657-8906, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Leeds and Northrup Co a Unit of General Signal Corp. Government technical data includes 9 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
NSN5360-00-657-8906
Primary Part NumberR503AL
Item NameSpring,helical,compression
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerLeeds and Northrup Co a Unit of General Signal Corp
StatusACTIVE
MaterialSTEEL OVERALL
Inside Diameter0.375 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
Style DesignatorCYLINDRICAL
Spring Free Length1.500 INCHES NOMINAL IN
Surface TreatmentCADMIUM OVERALL
Spring Free Outside Diameter0.439 INCHES NOMINAL IN
Coil Helix DirectionRIGHT-HAND OR LEFT-HAND
Coil Quantity9
End StyleSPRING END,SQUARED BOTH ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Cross-Reference Index
Part NumberManufacturer
R503AL Leeds and Northrup Co a Unit of General Signal Corp (USA)
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Frequently Asked Questions

What is NSN 5360-00-657-8906?

NSN 5360-00-657-8906 is a Spring,helical,compression, manufactured by Leeds and Northrup Co a Unit of General Signal Corp, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-00-657-8906?

NSN 5360-00-657-8906 has 1 cross-referenced part number: R503AL (Leeds and Northrup Co a Unit of General Signal Corp).

What are the specifications of R503AL?

Key specifications for R503AL: Material: STEEL OVERALL; Inside Diameter: 0.375 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN; Style Designator: CYLINDRICAL; Spring Free Length: 1.500 INCHES NOMINAL IN. 9 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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