PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

205105Spring,helical,compression

Lockheed Martin Corp · NSN 5360-00-520-9125 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-520-9125 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-520-9125. Primary manufacturer part number: 205105.
Features
  • Spring,helical,compression — FSC 5360
  • Coil Helix Direction: RIGHT-HAND
  • Spring Solid Length: 0.430 INCHES NOMINAL IN
  • Spring Free Outside Diameter: 0.600 INCHES NOMINAL IN
  • Inside Diameter: 0.522 INCHES NOMINAL IN
  • Accommodated Rod Diameter: 0.380 INCHES NOMINAL IN
  • Style Designator: CYLINDRICAL
  • Coil Quantity: 11
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 5360-00-520-9125, 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 Corp. 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5360-00-520-9125
Primary Part Number205105
Item NameSpring,helical,compression
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerLockheed Martin Corp
StatusACTIVE
Coil Helix DirectionRIGHT-HAND
Spring Solid Length0.430 INCHES NOMINAL IN
Spring Free Outside Diameter0.600 INCHES NOMINAL IN
Inside Diameter0.522 INCHES NOMINAL IN
Accommodated Rod Diameter0.380 INCHES NOMINAL IN
Style DesignatorCYLINDRICAL
Coil Quantity11
End StyleSPRING END,SQUARED AND GROUND BOTH ENDS
MaterialSTEEL OVERALL
Spring Free Length1.130 INCHES NOMINAL IN
Spring Deflection Rate2.300 POUNDS PER INCH NOMINAL LBS
Load Rating0.230 POUNDS NOMINAL LBS
Spring Length Under Load1.030 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5935-00-173-7300136BLUE INTERCHANGEABLE
Jack,tip
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
2010-00-399-5831CF100-18TC1PC85 INTERCHANGEABLE
Retainer
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
4820-00-595-2761284142N INTERCHANGEABLE
Valve,safety Relief
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
4820-01-103-9645205105 INTERCHANGEABLE
Valve,safety Relief
Crown Coachworks Inc Div Crown Coachworks Auto Body & Paint
Cross-Reference Index
Part NumberManufacturer
205105 PRIMARY Lockheed Martin Corp (USA)
Related Parts
5935-00-173-7300INTERCHANGEABLE
JACK,TIP
136BLUE
2010-00-399-5831INTERCHANGEABLE
RETAINER
CF100-18TC1PC85
4820-00-595-2761INTERCHANGEABLE
VALVE,SAFETY RELIEF
284142N
4820-01-103-9645INTERCHANGEABLE
VALVE,SAFETY RELIEF
205105

Frequently Asked Questions

What is NSN 5360-00-520-9125?

NSN 5360-00-520-9125 is a Spring,helical,compression, manufactured by Lockheed Martin Corp, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-00-520-9125?

NSN 5360-00-520-9125 has 1 cross-referenced part number: 205105 (Lockheed Martin Corp).

What NSN replaces 5360-00-520-9125?

There are 4 known substitutes for 5360-00-520-9125: 5935-00-173-7300, 2010-00-399-5831, 4820-00-595-2761 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 205105?

Key specifications for 205105: Coil Helix Direction: RIGHT-HAND; Spring Solid Length: 0.430 INCHES NOMINAL IN; Spring Free Outside Diameter: 0.600 INCHES NOMINAL IN; Inside Diameter: 0.522 INCHES NOMINAL IN. 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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