PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

75497Shaft,axle,automotive

Napco International Llc Dba Napco International Inc · NSN 2520-00-441-6506 · FSC 2520 · No Item Name Available
Verified by PartsTable
NSN 2520-00-441-6506 — this item is cataloged by the U.S. Government under National Stock Number 2520-00-441-6506. Primary manufacturer part number: 75497.
Features
  • Shaft,axle,automotive — FSC 2520
  • Second End Type: SPLINED
  • First End Spline Major Diameter: 1.634 INCHES MINIMUM AND 1.644 INCHES MAXIMUM IN
  • Second End Spline Length: 2.375 INCHES NOMINAL IN
  • First End Type: SPLINED
  • Material: STEEL
  • Second End Spline Quantity: 10
  • First End Spline Quantity: 10
Applications
  • Applications requiring Steel construction
General Description

The Shaft,axle,automotive, cataloged under National Stock Number 2520-00-441-6506, is classified within Federal Supply Class 2520 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Napco International Llc Dba Napco International Inc. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2520-00-441-6506
Primary Part Number75497
Item NameShaft,axle,automotive
FSC / FSG2520 / 25 — No Item Name Available
ManufacturerNapco International Llc Dba Napco International Inc
StatusACTIVE
Second End TypeSPLINED
First End Spline Major Diameter1.634 INCHES MINIMUM AND 1.644 INCHES MAXIMUM IN
Second End Spline Length2.375 INCHES NOMINAL IN
First End TypeSPLINED
MaterialSTEEL
Second End Spline Quantity10
First End Spline Quantity10
First End Spline TypeSTRAIGHT
First End Spline Minor Diameter1.440 INCHES MINIMUM AND 1.450 INCHES MAXIMUM IN
First End Spline Length2.623 INCHES NOMINAL IN
Second End Spline Major Diameter1.634 INCHES MINIMUM AND 1.644 INCHES MAXIMUM IN
Metallic Hardness Rating28.3 NOMINAL ROCKWELL C
Second End Spline TypeSTRAIGHT
Second End Bearing SeatNOT INCLUDED
First End Bearing SeatNOT INCLUDED
Second End Spline Minor Diameter1.440 INCHES MINIMUM AND 1.450 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5310-00-104-7695 INTERCHANGEABLE
Washer,flat
4720-00-733-977920505 INTERCHANGEABLE
Hose,preformed
Gates Corporation
1560-00-794-908139586 INTERCHANGEABLE
Interconnector,gun-
Bridgestone Americas Tire Operations, Llc
5950-00-879-1953147A739H01 INTERCHANGEABLE
Transformer,power
Northrop Grumman Support Services Corp
3110-01-330-338539586 INTERCHANGEABLE
Cone,tapered Roller Bearing
The Timken Corporation
6230-01-413-527075713 INTERCHANGEABLE
Flashlight
Streamlight Inc Dba Streamlight Inc
Cross-Reference Index
Part NumberManufacturer
75497 PRIMARY Napco International Llc Dba Napco International Inc (USA)
39586 Napco International Llc Dba Napco International Inc (USA)
Related Parts
5310-00-104-7695INTERCHANGEABLE
WASHER,FLAT
4720-00-733-9779INTERCHANGEABLE
HOSE,PREFORMED
20505
1560-00-794-9081INTERCHANGEABLE
INTERCONNECTOR,GUN-
39586
5950-00-879-1953INTERCHANGEABLE
TRANSFORMER,POWER
147A739H01
3110-01-330-3385INTERCHANGEABLE
CONE,TAPERED ROLLER BEARING
39586
6230-01-413-5270INTERCHANGEABLE
FLASHLIGHT
75713

Frequently Asked Questions

What is NSN 2520-00-441-6506?

NSN 2520-00-441-6506 is a Shaft,axle,automotive, manufactured by Napco International Llc Dba Napco International Inc, classified under FSC 2520 (No Item Name Available). Status: active.

What are the part numbers for NSN 2520-00-441-6506?

NSN 2520-00-441-6506 has 2 cross-referenced part numbers: 75497 (Napco International Llc Dba Napco International Inc), 39586 (Napco International Llc Dba Napco International Inc).

What NSN replaces 2520-00-441-6506?

There are 6 known substitutes for 2520-00-441-6506: 5310-00-104-7695, 4720-00-733-9779, 1560-00-794-9081 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 75497?

Key specifications for 75497: Second End Type: SPLINED; First End Spline Major Diameter: 1.634 INCHES MINIMUM AND 1.644 INCHES MAXIMUM IN; Second End Spline Length: 2.375 INCHES NOMINAL IN; First End Type: SPLINED. 17 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com