PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

121860Differential Gear Unit

Clark Material Handling Company · NSN 2520-01-312-2191 · FSC 2520 · No Item Name Available
Verified by PartsTable
NSN 2520-01-312-2191 — this item is cataloged by the U.S. Government under National Stock Number 2520-01-312-2191. Primary manufacturer part number: 121860.
Features
  • Differential Gear Unit — FSC 2520
  • 3 verified cross-references
  • Primary manufacturer: Clark Material Handling Company
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Differential Gear Unit, cataloged under National Stock Number 2520-01-312-2191, is classified within Federal Supply Class 2520 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Clark Material Handling Company. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameDifferential Gear Unit
FSC / FSG2520 — No Item Name Available (FSG 25)
ManufacturersDana Off Highway Products, Llc (CAGE 77237); Clark Equipment Co (CAGE 12603); Clark Material Handling Company (CAGE 89749)
Technical Specifications
ParameterValue
NSN2520-01-312-2191
Primary Part Number121860
Item NameDifferential Gear Unit
FSC / FSG2520 / 25 — No Item Name Available
ManufacturerClark Material Handling Company
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5330-00-418-67951218-60 INTERCHANGEABLE
Seal,oil
Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations
2530-01-654-0057140380 INTERCHANGEABLE
Valve,protecting,multicircuit Ai
Sealco Air Controls Inc
Cross-Reference Index
Part NumberManufacturer
121860 Dana Off Highway Products, Llc (USA)
121860 Clark Equipment Co (USA)
121860 PRIMARY Clark Material Handling Company (USA)
Related Parts
5330-00-418-6795INTERCHANGEABLE
SEAL,OIL
1218-60
2530-01-654-0057INTERCHANGEABLE
VALVE,PROTECTING,MULTICIRCUIT AI
140380

Frequently Asked Questions

What is NSN 2520-01-312-2191?

NSN 2520-01-312-2191 is a Differential Gear Unit, manufactured by Clark Material Handling Company, classified under FSC 2520 (No Item Name Available). Status: active.

What are the part numbers for NSN 2520-01-312-2191?

NSN 2520-01-312-2191 has 3 cross-referenced part numbers: 121860 (Dana Off Highway Products, Llc), 121860 (Clark Equipment Co), 121860 (Clark Material Handling Company).

What NSN replaces 2520-01-312-2191?

There are 2 known substitutes for 2520-01-312-2191: 5330-00-418-6795, 2530-01-654-0057. Verify interchangeability with system specifications before substitution.

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