PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

644073Hub Assembly

New Holland Construction · NSN 2520-00-493-7223 · FSC 2520 · No Item Name Available
Verified by PartsTable
NSN 2520-00-493-7223 — this item is cataloged by the U.S. Government under National Stock Number 2520-00-493-7223. Primary manufacturer part number: 644073.
Features
  • Hub Assembly — FSC 2520
  • General Characteristics Item Description: STEEL; 6.000 IN. OD; 0.938 IN. W; 2.625 IN. OD BORE SPLEENED; 2.125 IN. MAJOR DIA; 1.750 IN. MINOR DIA; 12 SPLEENS IN
  • 4 verified cross-references
  • Primary manufacturer: New Holland Construction
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Hub Assembly, cataloged under National Stock Number 2520-00-493-7223, is classified within Federal Supply Class 2520 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is New Holland Construction. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2520-00-493-7223
Primary Part Number644073
Item NameHub Assembly
FSC / FSG2520 / 25 — No Item Name Available
ManufacturerNew Holland Construction
StatusACTIVE
General Characteristics Item DescriptionSTEEL; 6.000 IN. OD; 0.938 IN. W; 2.625 IN. OD BORE SPLEENED; 2.125 IN. MAJOR DIA; 1.750 IN. MINOR DIA; 12 SPLEENS IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5961-00-993-3115 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
644073 New Holland Construction (USA)
644073 Minnpar, Llc Dba Minnpar (USA)
0644073-9 New Holland Construction (USA)
70644073 New Holland Construction (USA)
Related Parts
5961-00-993-3115INTERCHANGEABLE
TRANSISTOR

Frequently Asked Questions

What is NSN 2520-00-493-7223?

NSN 2520-00-493-7223 is a Hub Assembly, manufactured by New Holland Construction, classified under FSC 2520 (No Item Name Available). Status: active.

What are the part numbers for NSN 2520-00-493-7223?

NSN 2520-00-493-7223 has 4 cross-referenced part numbers: 644073 (New Holland Construction), 644073 (Minnpar, Llc Dba Minnpar), 0644073-9 (New Holland Construction), 70644073 (New Holland Construction).

What NSN replaces 2520-00-493-7223?

There is 1 known substitute for 2520-00-493-7223: 5961-00-993-3115. Verify interchangeability with system specifications before substitution.

What are the specifications of 644073?

Key specifications for 644073: General Characteristics Item Description: STEEL; 6.000 IN. OD; 0.938 IN. W; 2.625 IN. OD BORE SPLEENED; 2.125 IN. MAJOR DIA; 1.750 IN. MINOR DIA; 12 SPLEENS IN. 1 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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