PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9T1257Shaft,shouldered

Caterpillar Inc Div Caterpillar Defense · NSN 3040-01-289-8301 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-01-289-8301 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-289-8301. Primary manufacturer part number: 9T1257.
Features
  • Shaft,shouldered — FSC 3040
  • 2 verified cross-references
  • Primary manufacturer: Caterpillar Inc Div Caterpillar Defense
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Shaft,shouldered, cataloged under National Stock Number 3040-01-289-8301, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameShaft,shouldered
FSC / FSG3040 — No Item Name Available (FSG 30)
ManufacturersCaterpillar Inc Div Caterpillar Defense (CAGE 11083); Dana Corp Tyrone Hydraulics Inc Div (CAGE 11671)
Technical Specifications
ParameterValue
NSN3040-01-289-8301
Primary Part Number9T1257
Item NameShaft,shouldered
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3020-00-326-419726404 INTERCHANGEABLE
Gear,worm
Honeywell International Inc. Div Aerospace - Torrance
4720-00-678-87321014-H-5 INTERCHANGEABLE
Hose,preformed
Cepeda Associates, Inc. Dba Cepeda Associates Inc
5310-00-815-19821JA2631H23 INTERCHANGEABLE
Washer,flat
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
6220-01-649-354226404 INTERCHANGEABLE
Reflector,light
Generac Mobile Products, Llc
Cross-Reference Index
Part NumberManufacturer
9T1257 Caterpillar Inc Div Caterpillar Defense (USA)
26404 Dana Corp Tyrone Hydraulics Inc Div (USA)
Related Parts
3020-00-326-4197INTERCHANGEABLE
GEAR,WORM
26404
4720-00-678-8732INTERCHANGEABLE
HOSE,PREFORMED
1014-H-5
5310-00-815-1982INTERCHANGEABLE
WASHER,FLAT
1JA2631H23
6220-01-649-3542INTERCHANGEABLE
REFLECTOR,LIGHT
26404

Frequently Asked Questions

What is NSN 3040-01-289-8301?

NSN 3040-01-289-8301 is a Shaft,shouldered, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-01-289-8301?

NSN 3040-01-289-8301 has 2 cross-referenced part numbers: 9T1257 (Caterpillar Inc Div Caterpillar Defense), 26404 (Dana Corp Tyrone Hydraulics Inc Div).

What NSN replaces 3040-01-289-8301?

There are 4 known substitutes for 3040-01-289-8301: 3020-00-326-4197, 4720-00-678-8732, 5310-00-815-1982 and 1 more. Verify interchangeability with system specifications before substitution.

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