PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

121C9Spring,helical,compression

Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products · NSN 5360-00-252-8478 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-252-8478 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-252-8478. Primary manufacturer part number: 121C9.
Features
  • Spring,helical,compression — FSC 5360
  • Material Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
  • End Style: SPRING END,SQUARED AND GROUND BOTH ENDS
  • Coil Helix Direction: RIGHT-HAND OR LEFT-HAND
  • Spring Free Length: 5.125 INCHES MINIMUM AND 5.625 INCHES MAXIMUM IN
  • Spring Free Outside Diameter: 4.969 INCHES MINIMUM AND 5.000 INCHES MAXIMUM IN
  • Style Designator: CYLINDRICAL
  • Material: STEEL OVERALL
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 5360-00-252-8478, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 16 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5360-00-252-8478
Primary Part Number121C9
Item NameSpring,helical,compression
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerDana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products
StatusCANCELLED
Material Hardness Rating40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
End StyleSPRING END,SQUARED AND GROUND BOTH ENDS
Coil Helix DirectionRIGHT-HAND OR LEFT-HAND
Spring Free Length5.125 INCHES MINIMUM AND 5.625 INCHES MAXIMUM IN
Spring Free Outside Diameter4.969 INCHES MINIMUM AND 5.000 INCHES MAXIMUM IN
Style DesignatorCYLINDRICAL
MaterialSTEEL OVERALL
Inside Diameter0.344 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
Spring Solid Length1.375 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5305-00-054-6671 INTERCHANGEABLE
Screw,machine
5315-00-244-3913106A INTERCHANGEABLE
Pin,grooved,headed
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
5330-00-363-729828760 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5330-00-434-685128764-00 INTERCHANGEABLE
Gasket
Itt Marlow a Unit of Itt Pumps and Compressors Div
5325-01-099-6359577A180P13 INTERCHANGEABLE
Grommet,special
General Electric Company Dba Ge
2040-01-284-367591946 INTERCHANGEABLE
Adapter,cone
The Tomlinson Group, Llc
Cross-Reference Index
Part NumberManufacturer
121C9 PRIMARY Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products (USA)
121C9 Diamond Reo Truck Co (USA)
4061P11 PRIMARY Taylor Machine Works Inc (USA)
91946 Graham Paige Corp (USA)
12078N Diamond Reo Truck Co (USA)
121C9 Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.) (USA)
3C5100 Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.) (USA)
3CF0522 Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.) (USA)
811E528 Kersey / American Lafrance a Div of Figgie International Inc (USA)
B184302 PRIMARY U S Army Tank Automotive Command Amsta-Im-Mm (USA)
121C9 PRIMARY Bay City Shovels, Inc (USA)
12078M Diamond Reo Truck Co (USA)
28764 Diamond Reo Truck Co (USA)
121C9 PRIMARY Dana Corp Spicer Transmission Div (USA)
3CF0522 White Motor Corp (USA)
344689 White Motor Corp (USA)
Related Parts
5305-00-054-6671INTERCHANGEABLE
SCREW,MACHINE
5315-00-244-3913INTERCHANGEABLE
PIN,GROOVED,HEADED
106A
5330-00-363-7298INTERCHANGEABLE
SEAL,PLAIN ENCASED
28760
5330-00-434-6851INTERCHANGEABLE
GASKET
28764-00
5325-01-099-6359INTERCHANGEABLE
GROMMET,SPECIAL
577A180P13
2040-01-284-3675INTERCHANGEABLE
ADAPTER,CONE
91946

Frequently Asked Questions

What is NSN 5360-00-252-8478?

NSN 5360-00-252-8478 is a Spring,helical,compression, manufactured by Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products, classified under FSC 5360 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5360-00-252-8478?

NSN 5360-00-252-8478 has 16 cross-referenced part numbers: 121C9 (Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products), 121C9 (Diamond Reo Truck Co), 4061P11 (Taylor Machine Works Inc), 91946 (Graham Paige Corp), 12078N (Diamond Reo Truck Co) and 11 more.

What NSN replaces 5360-00-252-8478?

There are 6 known substitutes for 5360-00-252-8478: 5305-00-054-6671, 5315-00-244-3913, 5330-00-363-7298 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 121C9?

Key specifications for 121C9: Material Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM; End Style: SPRING END,SQUARED AND GROUND BOTH ENDS; Coil Helix Direction: RIGHT-HAND OR LEFT-HAND; Spring Free Length: 5.125 INCHES MINIMUM AND 5.625 INCHES MAXIMUM IN. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5360-00-252-8478 still in active supply?

NSN 5360-00-252-8478 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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