PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9B3386Disk,clutch,vehicular

Caterpillar Inc Div Caterpillar Defense · NSN 2520-00-374-1024 · FSC 2520 · No Item Name Available
Verified by PartsTable
NSN 2520-00-374-1024 — this item is cataloged by the U.S. Government under National Stock Number 2520-00-374-1024. Primary manufacturer part number: 9B3386.
Features
  • Disk,clutch,vehicular — FSC 2520
  • Design Type: DRY
  • Teeth Quantity Per Disk: 51
  • Disk Material: NICKEL ALLOY
  • Disk Type: EXTERNAL TEETH
  • Flexibility: RIGID
  • 8 verified cross-references
  • Primary manufacturer: Caterpillar Inc Div Caterpillar Defense
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Disk,clutch,vehicular, cataloged under National Stock Number 2520-00-374-1024, is classified within Federal Supply Class 2520 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2520-00-374-1024
Primary Part Number9B3386
Item NameDisk,clutch,vehicular
FSC / FSG2520 / 25 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusCANCELLED
Design TypeDRY
Teeth Quantity Per Disk51
Disk MaterialNICKEL ALLOY
Disk TypeEXTERNAL TEETH
FlexibilityRIGID
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
5310-00-273-765883497 INTERCHANGEABLE
Washer,flat
Telemechanics Inc
5310-00-285-1514 INTERCHANGEABLE
Washer,flat
6680-00-374-081982681 INTERCHANGEABLE
Head,tachometer-Bitumeter
Stewart-Warner Corporation
3040-00-528-19976479E INTERCHANGEABLE
Lining,friction
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
4320-00-859-633611625-4 INTERCHANGEABLE
Impeller,pump,centrifugal
The Gorman-Rupp Company Div Gorman-Rupp
4920-00-919-3126 INTERCHANGEABLE
Test Station,pneumatic System Co
4320-01-195-0177 INTERCHANGEABLE
Impeller,pump,centrifugal
6650-01-417-42546479 INTERCHANGEABLE
Borescope
Lenox Instrument Co., Inc.
6685-01-493-41006479 INTERCHANGEABLE
Manometer,vertical Tube
Amerex Corporation Dba Amerex Corp
6115-01-573-59226-479 INTERCHANGEABLE
Wheel Kit,generator
Pdi Ground Support Systems, Inc.
Cross-Reference Index
Part NumberManufacturer
9B3386 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
TD6479S Cooper Industries Inc Champion Aviation Products (USA)
6479 Jaeger Machine Co (USA)
6479D Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA)
6479K PRIMARY Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA)
6479 Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA)
8-3497 Superior Equipment Co Buckeye Div (USA)
8-3497 Caterpillar Inc Div Caterpillar Defense (USA)
Related Parts
5310-00-273-7658INTERCHANGEABLE
WASHER,FLAT
83497
5310-00-285-1514INTERCHANGEABLE
WASHER,FLAT
6680-00-374-0819INTERCHANGEABLE
HEAD,TACHOMETER-BITUMETER
82681
3040-00-528-1997INTERCHANGEABLE
LINING,FRICTION
6479E
4320-00-859-6336INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
11625-4
4920-00-919-3126INTERCHANGEABLE
TEST STATION,PNEUMATIC SYSTEM CO
4320-01-195-0177INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
6650-01-417-4254INTERCHANGEABLE
BORESCOPE
6479
6685-01-493-4100INTERCHANGEABLE
MANOMETER,VERTICAL TUBE
6479
6115-01-573-5922INTERCHANGEABLE
WHEEL KIT,GENERATOR
6-479
6625-01-705-6664INTERCHANGEABLE
PROBE,TEST

Frequently Asked Questions

What is NSN 2520-00-374-1024?

NSN 2520-00-374-1024 is a Disk,clutch,vehicular, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2520 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2520-00-374-1024?

NSN 2520-00-374-1024 has 8 cross-referenced part numbers: 9B3386 (Caterpillar Inc Div Caterpillar Defense), TD6479S (Cooper Industries Inc Champion Aviation Products), 6479 (Jaeger Machine Co), 6479D (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic), 6479K (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic) and 3 more.

What NSN replaces 2520-00-374-1024?

There are 11 known substitutes for 2520-00-374-1024: 5310-00-273-7658, 5310-00-285-1514, 6680-00-374-0819 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9B3386?

Key specifications for 9B3386: Design Type: DRY; Teeth Quantity Per Disk: 51; Disk Material: NICKEL ALLOY; Disk Type: EXTERNAL TEETH. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2520-00-374-1024 still in active supply?

NSN 2520-00-374-1024 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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