PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40313Shaft,axle,automotive

Western Mfg Co · NSN 2520-00-102-2765 · FSC 2520 · No Item Name Available
Verified by PartsTable
NSN 2520-00-102-2765 — this item is cataloged by the U.S. Government under National Stock Number 2520-00-102-2765. Primary manufacturer part number: 40313.
Features
  • Shaft,axle,automotive — FSC 2520
  • Mounting Facility Type and Quantity: 6 UNTHREADED HOLE(S)
  • Second End Spline Type: STRAIGHT
  • Second End Spline Length: 1.500 INCHES NOMINAL IN
  • Flange Thickness at Mounting Hole: 0.313 INCHES NOMINAL IN
  • First End Type: FLANGED
  • Material: STEEL COMP 4150
  • Material Document and Classification: AISI 4150 ASSN STD SINGLE MATERIAL RESPONSE
Applications
  • Applications requiring Steel Comp 4150 construction
General Description

The Shaft,axle,automotive, cataloged under National Stock Number 2520-00-102-2765, 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 17 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2520-00-102-2765
Primary Part Number40313
Item NameShaft,axle,automotive
FSC / FSG2520 / 25 — No Item Name Available
ManufacturerWestern Mfg Co
StatusACTIVE
Mounting Facility Type and Quantity6 UNTHREADED HOLE(S)
Second End Spline TypeSTRAIGHT
Second End Spline Length1.500 INCHES NOMINAL IN
Flange Thickness at Mounting Hole0.313 INCHES NOMINAL IN
First End TypeFLANGED
MaterialSTEEL COMP 4150
Material Document and ClassificationAISI 4150 ASSN STD SINGLE MATERIAL RESPONSE
Second End Bearing SeatNOT INCLUDED
Second End Spline Quantity10
First End Bearing SeatNOT INCLUDED
Metallic Hardness Rating45.0 MINIMUM ROCKWELL C AND 48.0 MAXIMUM ROCKWELL C
Second End Spline Minor Diameter0.915 INCHES MINIMUM AND 0.957 INCHES MAXIMUM IN
Second End TypeSPLINED
Hole Diameter0.312 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN
Second End Spline Major Diameter1.123 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
Flange Overall Thickness0.375 INCHES NOMINAL IN
Flange Outside Diameter3.938 INCHES MINIMUM AND 3.969 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5120-00-263-4137 INTERCHANGEABLE
Socket,socket Wrench
5961-00-272-8477 INTERCHANGEABLE
Transistor
5961-00-937-9988 INTERCHANGEABLE
Transistor
2990-01-041-896540-313 INTERCHANGEABLE
Rod,governor to Car
Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc
6685-01-260-713740313 INTERCHANGEABLE
Gage,pressure,dial Indicating
Sullair Corp
5962-01-295-8572654720-1 INTERCHANGEABLE
Microcircuit,linear
Raytheon Company Dba Raytheon
1005-01-438-1844 INTERCHANGEABLE
Brush,cleaning,small Arms
Cross-Reference Index
Part NumberManufacturer
40313 Western Mfg Co (USA)
Related Parts
5120-00-263-4137INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5961-00-272-8477INTERCHANGEABLE
TRANSISTOR
5961-00-937-9988INTERCHANGEABLE
TRANSISTOR
2990-01-041-8965INTERCHANGEABLE
ROD,GOVERNOR TO CAR
40-313
6685-01-260-7137INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
40313
5962-01-295-8572INTERCHANGEABLE
MICROCIRCUIT,LINEAR
654720-1
1005-01-438-1844INTERCHANGEABLE
BRUSH,CLEANING,SMALL ARMS

Frequently Asked Questions

What is NSN 2520-00-102-2765?

NSN 2520-00-102-2765 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 2520-00-102-2765?

NSN 2520-00-102-2765 has 1 cross-referenced part number: 40313 (Western Mfg Co).

What NSN replaces 2520-00-102-2765?

There are 7 known substitutes for 2520-00-102-2765: 5120-00-263-4137, 5961-00-272-8477, 5961-00-937-9988 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40313?

Key specifications for 40313: Mounting Facility Type and Quantity: 6 UNTHREADED HOLE(S); Second End Spline Type: STRAIGHT; Second End Spline Length: 1.500 INCHES NOMINAL IN; Flange Thickness at Mounting Hole: 0.313 INCHES NOMINAL IN. 18 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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