PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

121-4085#Yoke,universal Joint,vehicular

Rockford Powertrain Inc Div Powertrain Rockford, Inc. · NSN 2520-01-117-8610 · FSC 2520 · No Item Name Available
Verified by PartsTable
NSN 2520-01-117-8610 — this item is cataloged by the U.S. Government under National Stock Number 2520-01-117-8610. Primary manufacturer part number: 121-4085#.
Features
  • Yoke,universal Joint,vehicular — FSC 2520
  • Outside Shape: ROUND
  • Fork Height: 4.500 INCHES NOMINAL IN
  • Connection End Type: HUB
  • Hub End Thread Provision: UNTHREADED
  • Outside Diameter: 1.875 INCHES NOMINAL IN
  • Shaft Spline Quantity: 10
  • 4 verified cross-references
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Yoke,universal Joint,vehicular, cataloged under National Stock Number 2520-01-117-8610, is classified within Federal Supply Class 2520 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Rockford Powertrain Inc Div Powertrain Rockford, Inc.. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2520-01-117-8610
Primary Part Number121-4085#
Item NameYoke,universal Joint,vehicular
FSC / FSG2520 / 25 — No Item Name Available
ManufacturerRockford Powertrain Inc Div Powertrain Rockford, Inc.
StatusACTIVE
Outside ShapeROUND
Fork Height4.500 INCHES NOMINAL IN
Connection End TypeHUB
Hub End Thread ProvisionUNTHREADED
Outside Diameter1.875 INCHES NOMINAL IN
Shaft Spline Quantity10
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5133-00-266-9472 INTERCHANGEABLE
Drill,twist
5330-00-334-8724 INTERCHANGEABLE
Packing Material
5340-00-396-3394SM-B-148388 INTERCHANGEABLE
Plate,resilient Mount
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5330-00-502-0301 INTERCHANGEABLE
Seal
5136-00-555-0540 INTERCHANGEABLE
Tap,thread Cutting
5360-00-597-0928AF49A INTERCHANGEABLE
Spring,helical,compression
Wisconsin Motors, Llc
5330-00-817-4772 INTERCHANGEABLE
Seal,plain Encased
2520-00-848-02571-0200 INTERCHANGEABLE
Parts Kit,universal Joint
Neapco Inc
4920-00-886-663411549 INTERCHANGEABLE
Valve,pressure,test
Elbitamerica, Inc.
5330-01-029-9086 INTERCHANGEABLE
Seal,assembly
Cross-Reference Index
Part NumberManufacturer
4836108-3 Kalmar AC Inc (USA)
121-4085# PRIMARY Rockford Powertrain Inc Div Powertrain Rockford, Inc. (USA)
4836108 Kalmar AC Inc (USA)
11549 Windham Lifts Inc (USA)
Related Parts
5133-00-266-9472INTERCHANGEABLE
DRILL,TWIST
5330-00-334-8724INTERCHANGEABLE
PACKING MATERIAL
5340-00-396-3394INTERCHANGEABLE
PLATE,RESILIENT MOUNT
SM-B-148388
5330-00-502-0301INTERCHANGEABLE
SEAL
5136-00-555-0540INTERCHANGEABLE
TAP,THREAD CUTTING
5360-00-597-0928INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
AF49A
5330-00-817-4772INTERCHANGEABLE
SEAL,PLAIN ENCASED
2520-00-848-0257INTERCHANGEABLE
PARTS KIT,UNIVERSAL JOINT
1-0200
4920-00-886-6634INTERCHANGEABLE
VALVE,PRESSURE,TEST
11549
5330-01-029-9086INTERCHANGEABLE
SEAL,ASSEMBLY
5950-01-058-2510INTERCHANGEABLE
TRANSFORMER
11549
5995-01-374-4606INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
AA4424-1

Frequently Asked Questions

What is NSN 2520-01-117-8610?

NSN 2520-01-117-8610 is a Yoke,universal Joint,vehicular, manufactured by Rockford Powertrain Inc Div Powertrain Rockford, Inc., classified under FSC 2520 (No Item Name Available). Status: active.

What are the part numbers for NSN 2520-01-117-8610?

NSN 2520-01-117-8610 has 4 cross-referenced part numbers: 4836108-3 (Kalmar AC Inc), 121-4085# (Rockford Powertrain Inc Div Powertrain Rockford, Inc.), 4836108 (Kalmar AC Inc), 11549 (Windham Lifts Inc).

What NSN replaces 2520-01-117-8610?

There are 12 known substitutes for 2520-01-117-8610: 5133-00-266-9472, 5330-00-334-8724, 5340-00-396-3394 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 121-4085#?

Key specifications for 121-4085#: Special Features: KEYWAY0.375 IN. WIDE;DUST CAP INCLUDED IN; Outside Shape: ROUND; Fork Height: 4.500 INCHES NOMINAL IN; Connection End Type: HUB. 7 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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