PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4-28850Clutch Assembly,friction

Rockford Powertrain Inc Div Powertrain Rockford, Inc. · NSN 2520-01-324-1793 · FSC 2520 · No Item Name Available
Verified by PartsTable
NSN 2520-01-324-1793 — this item is cataloged by the U.S. Government under National Stock Number 2520-01-324-1793. Primary manufacturer part number: 4-28850.
Features
  • Clutch Assembly,friction — FSC 2520
  • 3 verified cross-references
  • Primary manufacturer: Rockford Powertrain Inc Div Powertrain Rockford, Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Clutch Assembly,friction, cataloged under National Stock Number 2520-01-324-1793, 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.. This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2520-01-324-1793
Primary Part Number4-28850
Item NameClutch Assembly,friction
FSC / FSG2520 / 25 — No Item Name Available
ManufacturerRockford Powertrain Inc Div Powertrain Rockford, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3110-00-100-058644348 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
3020-00-456-1090 INTERCHANGEABLE
Gear,spur
3030-00-793-1036B40 INTERCHANGEABLE
Belt,v
Gates Corporation
5805-01-239-9185 INTERCHANGEABLE
Chamber,cable Terminal
Cross-Reference Index
Part NumberManufacturer
04-28850 Rockford Powertrain Inc Div Powertrain Rockford, Inc. (USA)
4-28850 PRIMARY Rockford Powertrain Inc Div Powertrain Rockford, Inc. (USA)
36529 Volvo Motor Graders Ltd (CAN)
Related Parts
3110-00-100-0586INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
44348
3020-00-456-1090INTERCHANGEABLE
GEAR,SPUR
3030-00-793-1036INTERCHANGEABLE
BELT,V
B40
5805-01-239-9185INTERCHANGEABLE
CHAMBER,CABLE TERMINAL

Frequently Asked Questions

What is NSN 2520-01-324-1793?

NSN 2520-01-324-1793 is a Clutch Assembly,friction, 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 2520-01-324-1793?

NSN 2520-01-324-1793 has 3 cross-referenced part numbers: 04-28850 (Rockford Powertrain Inc Div Powertrain Rockford, Inc.), 4-28850 (Rockford Powertrain Inc Div Powertrain Rockford, Inc.), 36529 (Volvo Motor Graders Ltd).

What NSN replaces 2520-01-324-1793?

There are 4 known substitutes for 2520-01-324-1793: 3110-00-100-0586, 3020-00-456-1090, 3030-00-793-1036 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4-28850?

Key specifications for 4-28850: Special Features: CLUTCH 15.880 IN. W,7.190 IN. H;ONE EA OF THE FOLLOWING ITEMS:41244 DRIVE RING,37171 OUTER DISC,41246 DISC AND HUB ASSY,37169 SPLINED HUB,40896 COVER ASSY,37174 PRESSURE PLATE IN; End Item Identification: USED ON ROAD GRADER. 2 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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