PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8509-4Shaft,axle,automotive

Eaton Corp Hydraulics Div · NSN 2520-01-368-7720 · FSC 2520 · No Item Name Available
Verified by PartsTable
NSN 2520-01-368-7720 — this item is cataloged by the U.S. Government under National Stock Number 2520-01-368-7720. Primary manufacturer part number: 8509-4.
Features
  • Shaft,axle,automotive — FSC 2520
  • Material: STEEL
  • Material Document and Classification: B116-2, ROCKWELL-STANDARD CORP, TRANSMISSION AND AXLE DIV MFR REF SINGLE MATERIAL RESPONSE
  • 1 verified cross-reference
  • Primary manufacturer: Eaton Corp Hydraulics Div
Applications
  • Applications requiring Steel construction
General Description

The Shaft,axle,automotive, cataloged under National Stock Number 2520-01-368-7720, is classified within Federal Supply Class 2520 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Eaton Corp Hydraulics Div. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2520-01-368-7720
Primary Part Number8509-4
Item NameShaft,axle,automotive
FSC / FSG2520 / 25 — No Item Name Available
ManufacturerEaton Corp Hydraulics Div
StatusACTIVE
MaterialSTEEL
Material Document and ClassificationB116-2, ROCKWELL-STANDARD CORP, TRANSMISSION AND AXLE DIV MFR REF SINGLE MATERIAL RESPONSE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5306-00-010-6280 INTERCHANGEABLE
Bolt,machine
5340-00-205-6218 INTERCHANGEABLE
Clamp,loop
3110-01-359-971285094 INTERCHANGEABLE
Cam Follower,needle Bearing
Brunswick Corp Dba Mercury Marine Div Mercury Marine
6645-01-473-695985094 INTERCHANGEABLE
Meter,time Totalizing
Honeywell International Inc. Dba Honeyweel Sensing & Controls
6645-01-625-904085094 INTERCHANGEABLE
Meter,time Totalizing
Honeywell International Inc Dba Honeywell
Cross-Reference Index
Part NumberManufacturer
8509-4 PRIMARY Eaton Corp Hydraulics Div (USA)
Related Parts
5306-00-010-6280INTERCHANGEABLE
BOLT,MACHINE
5340-00-205-6218INTERCHANGEABLE
CLAMP,LOOP
3110-01-359-9712INTERCHANGEABLE
CAM FOLLOWER,NEEDLE BEARING
85094
6645-01-473-6959INTERCHANGEABLE
METER,TIME TOTALIZING
85094
6645-01-625-9040INTERCHANGEABLE
METER,TIME TOTALIZING
85094

Frequently Asked Questions

What is NSN 2520-01-368-7720?

NSN 2520-01-368-7720 is a Shaft,axle,automotive, manufactured by Eaton Corp Hydraulics Div, classified under FSC 2520 (No Item Name Available). Status: active.

What are the part numbers for NSN 2520-01-368-7720?

NSN 2520-01-368-7720 has 1 cross-referenced part number: 8509-4 (Eaton Corp Hydraulics Div).

What NSN replaces 2520-01-368-7720?

There are 5 known substitutes for 2520-01-368-7720: 5306-00-010-6280, 5340-00-205-6218, 3110-01-359-9712 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8509-4?

Key specifications for 8509-4: Material: STEEL; Material Document and Classification: B116-2, ROCKWELL-STANDARD CORP, TRANSMISSION AND AXLE DIV MFR REF SINGLE MATERIAL RESPONSE; End Item Identification: 3820-01-178-5057; Overall Length: 5.000 INCHES NOMINAL IN. 4 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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