PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

257749C91Plate,pressure,clutch

Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ · NSN 2520-00-390-3143 · FSC 2520 · No Item Name Available
Verified by PartsTable
NSN 2520-00-390-3143 — this item is cataloged by the U.S. Government under National Stock Number 2520-00-390-3143. Primary manufacturer part number: 257749C91.
Features
  • Plate,pressure,clutch — FSC 2520
  • General Characteristics Item Description: NICKEL,13.875 IN. NOM MAJOR OD,7.250 IN. NOM @MINOR ID,W/TWO STUDS IN
  • 2 verified cross-references
  • Primary manufacturer: Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Plate,pressure,clutch, cataloged under National Stock Number 2520-00-390-3143, is classified within Federal Supply Class 2520 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2520-00-390-3143
Primary Part Number257749C91
Item NamePlate,pressure,clutch
FSC / FSG2520 / 25 — No Item Name Available
ManufacturerNavistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
StatusCANCELLED
General Characteristics Item DescriptionNICKEL,13.875 IN. NOM MAJOR OD,7.250 IN. NOM @MINOR ID,W/TWO STUDS IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5975-00-152-1124 INTERCHANGEABLE
Box Connector,electrical
5950-00-671-4506 INTERCHANGEABLE
Coil,radio Frequency
Cross-Reference Index
Part NumberManufacturer
257749C91 Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
AC1-25 Lipe Corp (USA)
Related Parts
5975-00-152-1124INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
5950-00-671-4506INTERCHANGEABLE
COIL,RADIO FREQUENCY

Frequently Asked Questions

What is NSN 2520-00-390-3143?

NSN 2520-00-390-3143 is a Plate,pressure,clutch, manufactured by Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/, classified under FSC 2520 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2520-00-390-3143?

NSN 2520-00-390-3143 has 2 cross-referenced part numbers: 257749C91 (Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/), AC1-25 (Lipe Corp).

What NSN replaces 2520-00-390-3143?

There are 2 known substitutes for 2520-00-390-3143: 5975-00-152-1124, 5950-00-671-4506. Verify interchangeability with system specifications before substitution.

What are the specifications of 257749C91?

Key specifications for 257749C91: General Characteristics Item Description: NICKEL,13.875 IN. NOM MAJOR OD,7.250 IN. NOM @MINOR ID,W/TWO STUDS IN. 1 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2520-00-390-3143 still in active supply?

NSN 2520-00-390-3143 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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