PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

591KC115Shaft,shouldered

Mack Trucks Inc Parts Opn · NSN 3040-00-692-6298 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-00-692-6298 — this item is cataloged by the U.S. Government under National Stock Number 3040-00-692-6298. Primary manufacturer part number: 591KC115.
Features
  • Shaft,shouldered — FSC 3040
  • End Similarity: NOT IDENTICAL
  • Step Quantity: 16
  • Second End Diameter: 0.5000 INCHES NOMINAL IN
  • Largest Step Diameter: 0.746 INCHES MINIMUM AND 0.747 INCHES MAXIMUM IN
  • Material: STEEL
  • First End Diameter: 0.8725 INCHES MINIMUM AND 0.8755 INCHES MAXIMUM IN
  • 2 verified cross-references
Applications
  • Applications requiring Steel construction
General Description

The Shaft,shouldered, cataloged under National Stock Number 3040-00-692-6298, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Mack Trucks Inc Parts Opn. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-00-692-6298
Primary Part Number591KC115
Item NameShaft,shouldered
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerMack Trucks Inc Parts Opn
StatusACTIVE
End SimilarityNOT IDENTICAL
Step Quantity16
Second End Diameter0.5000 INCHES NOMINAL IN
Largest Step Diameter0.746 INCHES MINIMUM AND 0.747 INCHES MAXIMUM IN
MaterialSTEEL
First End Diameter0.8725 INCHES MINIMUM AND 0.8755 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3110-00-740-1111294396 INTERCHANGEABLE
Bearing,ball,annular
L3harris Cincinnati Electronics Corporation
5305-01-251-16458333-001 INTERCHANGEABLE
Setscrew
Sps Technologies, Llc Dba PB Fasteners
Cross-Reference Index
Part NumberManufacturer
591KC115 PRIMARY Mack Trucks Inc Parts Opn (USA)
8333001 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
Related Parts
3110-00-740-1111INTERCHANGEABLE
BEARING,BALL,ANNULAR
294396
5305-01-251-1645INTERCHANGEABLE
SETSCREW
8333-001

Frequently Asked Questions

What is NSN 3040-00-692-6298?

NSN 3040-00-692-6298 is a Shaft,shouldered, manufactured by Mack Trucks Inc Parts Opn, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-00-692-6298?

NSN 3040-00-692-6298 has 2 cross-referenced part numbers: 591KC115 (Mack Trucks Inc Parts Opn), 8333001 (U S Army Tank Automotive Command Amsta-Im-Mm).

What NSN replaces 3040-00-692-6298?

There are 2 known substitutes for 3040-00-692-6298: 3110-00-740-1111, 5305-01-251-1645. Verify interchangeability with system specifications before substitution.

What are the specifications of 591KC115?

Key specifications for 591KC115: End Similarity: NOT IDENTICAL; Step Quantity: 16; Second End Diameter: 0.5000 INCHES NOMINAL IN; Overall Length: 11.190 INCHES NOMINAL IN. 7 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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