PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

129-1909Shaft,shouldered

Caterpillar Inc Div Caterpillar Defense · NSN 3040-01-451-7965 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-01-451-7965 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-451-7965. Primary manufacturer part number: 129-1909.
Features
  • Shaft,shouldered — FSC 3040
  • 3 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 3040-01-451-7965, 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 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 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)
ManufacturersDana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products (CAGE 72447); Caterpillar Inc Div Caterpillar Defense (CAGE 11083)
Technical Specifications
ParameterValue
NSN3040-01-451-7965
Primary Part Number129-1909
Item NameShaft,shouldered
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5940-01-079-6798013-1021-00-0-609 INTERCHANGEABLE
Terminal,stud
Itt Cannon Rf Products
5331-01-288-2180921-004 INTERCHANGEABLE
O-Ring
Allied Healthcare Products, Inc. Dba Allied
5955-01-377-3419921004 INTERCHANGEABLE
Oscillator,crystal Controlled
Astronics Test Systems Inc
Cross-Reference Index
Part NumberManufacturer
921004 Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products (USA)
5022491-0121 Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products (USA)
129-1909 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
Related Parts
5940-01-079-6798INTERCHANGEABLE
TERMINAL,STUD
013-1021-00-0-609
5331-01-288-2180INTERCHANGEABLE
O-RING
921-004
5955-01-377-3419INTERCHANGEABLE
OSCILLATOR,CRYSTAL CONTROLLED
921004

Frequently Asked Questions

What is NSN 3040-01-451-7965?

NSN 3040-01-451-7965 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 3040-01-451-7965?

NSN 3040-01-451-7965 has 3 cross-referenced part numbers: 921004 (Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products), 5022491-0121 (Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products), 129-1909 (Caterpillar Inc Div Caterpillar Defense).

What NSN replaces 3040-01-451-7965?

There are 3 known substitutes for 3040-01-451-7965: 5940-01-079-6798, 5331-01-288-2180, 5955-01-377-3419. Verify interchangeability with system specifications before substitution.

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