PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6748000Shaft,shouldered

Cummins Inc. · NSN 3040-00-179-4166 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-00-179-4166 — this item is cataloged by the U.S. Government under National Stock Number 3040-00-179-4166. Primary manufacturer part number: 6748000.
Features
  • Shaft,shouldered — FSC 3040
  • First End Distance From Keyway Center to End: 1.063 INCHES NOMINAL IN
  • Material: STEEL
  • External Keyway Length: 0.750 INCHES NOMINAL FIRST END IN
  • Step Quantity: 6
  • Largest Step Diameter: 1.246 INCHES NOMINAL IN
  • First End Diameter: 0.8750 INCHES NOMINAL IN
  • Second End External Thread Length: 0.500 INCHES NOMINAL IN
Applications
  • Applications requiring Steel construction
General Description

The Shaft,shouldered, cataloged under National Stock Number 3040-00-179-4166, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Cummins Inc.. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3040-00-179-4166
Primary Part Number6748000
Item NameShaft,shouldered
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerCummins Inc.
StatusCANCELLED
First End Distance From Keyway Center to End1.063 INCHES NOMINAL IN
MaterialSTEEL
External Keyway Length0.750 INCHES NOMINAL FIRST END IN
Step Quantity6
Largest Step Diameter1.246 INCHES NOMINAL IN
First End Diameter0.8750 INCHES NOMINAL IN
Second End External Thread Length0.500 INCHES NOMINAL IN
Second End Diameter0.5000 INCHES NOMINAL IN
First End Keyway Width0.1870 INCHES NOMINAL IN
First End StyleWOODRUFF KEYWAY
Second End StyleEXTERNAL THREADED
End SimilarityNOT IDENTICAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5330-00-757-8467352541 INTERCHANGEABLE
Seal,plain
Federal-Mogul Corp Government Sales Dept
Cross-Reference Index
Part NumberManufacturer
H64780 Cummins Inc. (USA)
6748000 PRIMARY Cummins Inc. (USA)
64780 Cummins Inc. (USA)
Related Parts
5330-00-757-8467INTERCHANGEABLE
SEAL,PLAIN
352541

Frequently Asked Questions

What is NSN 3040-00-179-4166?

NSN 3040-00-179-4166 is a Shaft,shouldered, manufactured by Cummins Inc., classified under FSC 3040 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3040-00-179-4166?

NSN 3040-00-179-4166 has 3 cross-referenced part numbers: H64780 (Cummins Inc.), 6748000 (Cummins Inc.), 64780 (Cummins Inc.).

What NSN replaces 3040-00-179-4166?

There is 1 known substitute for 3040-00-179-4166: 5330-00-757-8467. Verify interchangeability with system specifications before substitution.

What are the specifications of 6748000?

Key specifications for 6748000: First End Distance From Keyway Center to End: 1.063 INCHES NOMINAL IN; Material: STEEL; External Keyway Length: 0.750 INCHES NOMINAL FIRST END IN; Step Quantity: 6. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3040-00-179-4166 still in active supply?

NSN 3040-00-179-4166 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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