PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

55811Spring,helical,compression

Woodward Hrt Inc · NSN 5360-00-179-6502 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-179-6502 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-179-6502. Primary manufacturer part number: 55811.
Features
  • Spring,helical,compression — FSC 5360
  • Spring Free Length: 2.596 INCHES NOMINAL IN
  • End Style: SPRING END,SQUARED AND GROUND BOTH ENDS
  • Spring Solid Length: 1.070 INCHES NOMINAL IN
  • Coil Quantity: 16
  • Inside Diameter: 0.401 INCHES NOMINAL IN
  • Material: STEEL CORROSION RESISTING OVERALL
  • Spring Deflection Rate: 19.600 POUNDS PER INCH NOMINAL LBS
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Spring,helical,compression, cataloged under National Stock Number 5360-00-179-6502, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Woodward Hrt Inc. Government technical data includes 13 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5360-00-179-6502
Primary Part Number55811
Item NameSpring,helical,compression
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerWoodward Hrt Inc
StatusACTIVE
Spring Free Length2.596 INCHES NOMINAL IN
End StyleSPRING END,SQUARED AND GROUND BOTH ENDS
Spring Solid Length1.070 INCHES NOMINAL IN
Coil Quantity16
Inside Diameter0.401 INCHES NOMINAL IN
MaterialSTEEL CORROSION RESISTING OVERALL
Spring Deflection Rate19.600 POUNDS PER INCH NOMINAL LBS
Spring Length Under Load1.406 INCHES NOMINAL IN
Spring Free Outside Diameter0.525 INCHES MINIMUM AND 0.545 INCHES MAXIMUM IN
Spring Solid Outside Diameter0.525 INCHES MINIMUM AND 0.545 INCHES MAXIMUM IN
Coil Helix DirectionLEFT-HAND
Style DesignatorCYLINDRICAL
Load Rating21.000 POUNDS MINIMUM AND 23.500 POUNDS MAXIMUM LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5930-00-820-954610670368 INTERCHANGEABLE
Switch,push
Us Army Aviation and Missile Command
4820-01-094-6253 INTERCHANGEABLE
Valve,check
5331-01-351-635555811 INTERCHANGEABLE
O-Ring
Leroi International Inc Dba Compair Leroi
Cross-Reference Index
Part NumberManufacturer
55811 PRIMARY Woodward Hrt Inc (USA)
Related Parts
5930-00-820-9546INTERCHANGEABLE
SWITCH,PUSH
10670368
4820-01-094-6253INTERCHANGEABLE
VALVE,CHECK
5331-01-351-6355INTERCHANGEABLE
O-RING
55811

Frequently Asked Questions

What is NSN 5360-00-179-6502?

NSN 5360-00-179-6502 is a Spring,helical,compression, manufactured by Woodward Hrt Inc, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-00-179-6502?

NSN 5360-00-179-6502 has 1 cross-referenced part number: 55811 (Woodward Hrt Inc).

What NSN replaces 5360-00-179-6502?

There are 3 known substitutes for 5360-00-179-6502: 5930-00-820-9546, 4820-01-094-6253, 5331-01-351-6355. Verify interchangeability with system specifications before substitution.

What are the specifications of 55811?

Key specifications for 55811: Spring Free Length: 2.596 INCHES NOMINAL IN; End Style: SPRING END,SQUARED AND GROUND BOTH ENDS; Spring Solid Length: 1.070 INCHES NOMINAL IN; Coil Quantity: 16. 13 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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