PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20013Shaft,axle,automotive

Western Mfg Co · NSN 2520-00-909-7689 · FSC 2520 · No Item Name Available
Verified by PartsTable
NSN 2520-00-909-7689 — this item is cataloged by the U.S. Government under National Stock Number 2520-00-909-7689. Primary manufacturer part number: 20013.
Features
  • Shaft,axle,automotive — FSC 2520
  • Mounting Facility Type and Quantity: 6 UNTHREADED HOLE(S)
  • Flange Thickness at Mounting Hole: 0.312 INCHES NOMINAL IN
  • Material: STEEL COMP 4145
  • Material Document and Classification: AISI 4145 ASSN STD SINGLE MATERIAL RESPONSE
  • FSC Application Data: AXLE ASSEMBLY,AUTOMOTIVE,DRIVING
  • Second End Spline Minor Diameter: 0.705 INCHES MINIMUM AND 0.742 INCHES MAXIMUM IN
  • Second End Spline Quantity: 10
Applications
  • Applications requiring Steel Comp 4145 construction
General Description

The Shaft,axle,automotive, cataloged under National Stock Number 2520-00-909-7689, is classified within Federal Supply Class 2520 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Western Mfg Co. Government technical data includes 18 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2520-00-909-7689
Primary Part Number20013
Item NameShaft,axle,automotive
FSC / FSG2520 / 25 — No Item Name Available
ManufacturerWestern Mfg Co
StatusACTIVE
Mounting Facility Type and Quantity6 UNTHREADED HOLE(S)
Flange Thickness at Mounting Hole0.312 INCHES NOMINAL IN
MaterialSTEEL COMP 4145
Material Document and ClassificationAISI 4145 ASSN STD SINGLE MATERIAL RESPONSE
FSC Application DataAXLE ASSEMBLY,AUTOMOTIVE,DRIVING
Second End Spline Minor Diameter0.705 INCHES MINIMUM AND 0.742 INCHES MAXIMUM IN
Second End Spline Quantity10
First End TypeFLANGED
Second End TypeSPLINED
Second End Spline Length1.250 INCHES NOMINAL IN
Metallic Hardness Rating45.0 MINIMUM ROCKWELL C AND 48.0 MAXIMUM ROCKWELL C
Flange Overall Thickness0.375 INCHES NOMINAL IN
Second End Spline Major Diameter0.8735 INCHES MINIMUM AND 0.8745 INCHES MAXIMUM IN
Second End Bearing SeatNOT INCLUDED
Flange Outside Diameter3.938 INCHES MINIMUM AND 3.969 INCHES MAXIMUM IN
Second End Spline TypeSTRAIGHT
First End Bearing SeatNOT INCLUDED
Hole Diameter0.312 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-100-44531985-1932 INTERCHANGEABLE
Bearing,roller,tapered
The Timken Corporation
3110-00-144-8620104KSFFQ5A7MILG3278 INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
4710-00-146-0655 INTERCHANGEABLE
Tube Assembly,metal
5133-00-189-9182 INTERCHANGEABLE
Drill,twist
5133-00-189-9248 INTERCHANGEABLE
Drill,twist
5342-00-235-191320013 INTERCHANGEABLE
Latch,retainer
Paco Plastics & Engineering, Inc. Dba Paco Plastics & Engineering Inc
5945-00-248-6783A36928 INTERCHANGEABLE
Relay,electromagnetic
Te Connectivity Corporation
4820-00-375-6343R20-03-000 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Parker-Hannifin Corporation Dba Pneutronics Div Pneumatic Division
5910-00-434-9104501194-1 INTERCHANGEABLE
Capacitor,variable,air Dielectri
L3harris Technologies, Inc. Dba Harris Corporation
4130-00-872-492922677 INTERCHANGEABLE
Filter-Drier,refrigerant
Silver King Refrigeration Inc.
Cross-Reference Index
Part NumberManufacturer
20013 Western Mfg Co (USA)
Related Parts
3110-00-100-4453INTERCHANGEABLE
BEARING,ROLLER,TAPERED
1985-1932
3110-00-144-8620INTERCHANGEABLE
BEARING,BALL,ANNULAR
104KSFFQ5A7MILG3278
4710-00-146-0655INTERCHANGEABLE
TUBE ASSEMBLY,METAL
5133-00-189-9182INTERCHANGEABLE
DRILL,TWIST
5133-00-189-9248INTERCHANGEABLE
DRILL,TWIST
5342-00-235-1913INTERCHANGEABLE
LATCH,RETAINER
20013
5945-00-248-6783INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
A36928
4820-00-375-6343INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
R20-03-000
5910-00-434-9104INTERCHANGEABLE
CAPACITOR,VARIABLE,AIR DIELECTRI
501194-1
4130-00-872-4929INTERCHANGEABLE
FILTER-DRIER,REFRIGERANT
22677
5940-00-983-6054INTERCHANGEABLE
TERMINAL BOARD
4520-01-063-4370INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
20013

Frequently Asked Questions

What is NSN 2520-00-909-7689?

NSN 2520-00-909-7689 is a Shaft,axle,automotive, manufactured by Western Mfg Co, classified under FSC 2520 (No Item Name Available). Status: active.

What are the part numbers for NSN 2520-00-909-7689?

NSN 2520-00-909-7689 has 1 cross-referenced part number: 20013 (Western Mfg Co).

What NSN replaces 2520-00-909-7689?

There are 12 known substitutes for 2520-00-909-7689: 3110-00-100-4453, 3110-00-144-8620, 4710-00-146-0655 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20013?

Key specifications for 20013: Mounting Facility Type and Quantity: 6 UNTHREADED HOLE(S); Flange Thickness at Mounting Hole: 0.312 INCHES NOMINAL IN; Material: STEEL COMP 4145; Material Document and Classification: AISI 4145 ASSN STD SINGLE MATERIAL RESPONSE. 19 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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