PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

PP4Disk,clutch,vehicular

Cmbf Products Inc · NSN 2520-00-640-2326 · FSC 2520 · No Item Name Available
Verified by PartsTable
NSN 2520-00-640-2326 — this item is cataloged by the U.S. Government under National Stock Number 2520-00-640-2326. Primary manufacturer part number: PP4.
Features
  • Disk,clutch,vehicular — FSC 2520
  • 3 verified cross-references
  • Primary manufacturer: Cmbf Products Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Disk,clutch,vehicular, cataloged under National Stock Number 2520-00-640-2326, is classified within Federal Supply Class 2520 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Cmbf Products Inc. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameDisk,clutch,vehicular
FSC / FSG2520 — No Item Name Available (FSG 25)
ManufacturersThe S K Wellman Corp Dba Wellman Friction Products (CAGE 79370); Caterpillar Inc Div Caterpillar Defense (CAGE 11083); Cmbf Products Inc (CAGE 7R1P5)
Technical Specifications
ParameterValue
NSN2520-00-640-2326
Primary Part NumberPP4
Item NameDisk,clutch,vehicular
FSC / FSG2520 / 25 — No Item Name Available
ManufacturerCmbf Products Inc
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
2640-00-138-8331PP4 INTERCHANGEABLE
Patch,inner Tube Repair
Technical Rubber Company, Inc.
5340-01-098-9726PP4 INTERCHANGEABLE
Clamp,loop
Dsk Engineering and Technology Inc
8020-01-126-1438RE 011261438 INTERCHANGEABLE
Brush,paint
Defense Logistics Agency Dba Defense Supply Center Philadelphia
Cross-Reference Index
Part NumberManufacturer
PP4 The S K Wellman Corp Dba Wellman Friction Products (USA)
2B8955 Caterpillar Inc Div Caterpillar Defense (USA)
PP4 PRIMARY Cmbf Products Inc (USA)
Related Parts
2640-00-138-8331INTERCHANGEABLE
PATCH,INNER TUBE REPAIR
PP4
5340-01-098-9726INTERCHANGEABLE
CLAMP,LOOP
PP4
8020-01-126-1438INTERCHANGEABLE
BRUSH,PAINT
RE 011261438

Frequently Asked Questions

What is NSN 2520-00-640-2326?

NSN 2520-00-640-2326 is a Disk,clutch,vehicular, manufactured by Cmbf Products Inc, classified under FSC 2520 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2520-00-640-2326?

NSN 2520-00-640-2326 has 3 cross-referenced part numbers: PP4 (The S K Wellman Corp Dba Wellman Friction Products), 2B8955 (Caterpillar Inc Div Caterpillar Defense), PP4 (Cmbf Products Inc).

What NSN replaces 2520-00-640-2326?

There are 3 known substitutes for 2520-00-640-2326: 2640-00-138-8331, 5340-01-098-9726, 8020-01-126-1438. Verify interchangeability with system specifications before substitution.

Is NSN 2520-00-640-2326 still in active supply?

NSN 2520-00-640-2326 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.
PartsTable Design LLC · partstable.com