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NSN 3040-01-435-5865Government record, cited
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Shaft, Shouldered3040-01-435-5865

NSN 3040-01-435-5865 · NIIN 014355865 · Part number 6111403-C1
Naval Sea Systems Command · FSC 3040 — Miscellaneous Power Transmission Equipment · FSG 30 — Mechanical Power Transmission Equipment · CAGE 53711
Government record, cited
NSN 3040-01-435-5865 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-435-5865. Manufacturer of record part number: 6111403-C1.
Also searched as  3040-01-435-5865 · 3040014355865 · NIIN 014355865 · 01-435-5865 · FSC 3040 Miscellaneous Power Transmission Equipment · CAGE 53711 · 6111403-C1 · 581-6405750 AHWA FIND C1 · 6405750
Nearby stock numbers  ·
Features
  • Shaft,shouldered — FSC 3040
  • Surface Finish: 63.0 MICROINCHES
  • First End Width Across Flats: 0.999 INCHES NOMINAL IN
  • Second End Hole Diameter: 0.2500 INCHES NOMINAL IN
  • Second End External Thread Length: 0.8750 INCHES NOMINAL IN
  • Step Quantity: 6
  • First End Diameter: 2.5000 INCHES NOMINAL IN
  • First End Step Length: 2.2730 INCHES NOMINAL IN
Identification
  • NSN: 3040-01-435-5865
  • NIIN: 014355865
  • FSC: 3040 — Miscellaneous Power Transmission Equipment
  • FSG: 30 — Mechanical Power Transmission Equipment
  • Primary part number: 6111403-C1
  • Manufacturer: Naval Sea Systems Command
General Description

The Shaft,shouldered, cataloged under National Stock Number 3040-01-435-5865, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 11 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-01-435-5865
Primary Part Number6111403-C1
Item NameShaft,shouldered
FSC / FSG3040 / 30 — Miscellaneous Power Transmission Equipment
ManufacturerNaval Sea Systems Command
StatusACTIVE
Surface Finish63.0 MICROINCHES
First End Width Across Flats0.999 INCHES NOMINAL IN
Second End Hole Diameter0.2500 INCHES NOMINAL IN
Second End External Thread Length0.8750 INCHES NOMINAL IN
Step Quantity6
First End Diameter2.5000 INCHES NOMINAL IN
First End Step Length2.2730 INCHES NOMINAL IN
Second End Diameter0.8750 INCHES NOMINAL IN
Largest Step Diameter2.500 INCHES NOMINAL IN
First End StyleSQUARE (ROUND CORNERS)
Second End Distance From Hole Center to End0.4415 INCHES NOMINAL IN
Second End Hole Depth0.2035 INCHES NOMINAL IN
End SimilarityNOT IDENTICAL
Second End StyleCROSS DRILLED AND EXTERNALLY THREADED
MaterialNICKEL ALLOY
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 11
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3040-01-441-4883C611-1403-AHWA-A4 POSSIBLE MATCH
SHAFT,SHOULDERED
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
3040-01-441-5040C611-1403-AHWA-9 POSSIBLE MATCH
SHAFT,STRAIGHT
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
3010-01-442-1727218027408 POSSIBLE MATCH
UNIVERSAL JOINT,NONVEHICULAR
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
3010-01-442-1946218016495A POSSIBLE MATCH
UNIVERSAL JOINT,NONVEHICULAR
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
3010-01-442-1951211058437 POSSIBLE MATCH
YOKE,UNIVERSAL JOINT,NONVEHICULA
Possible match (shared part number)Naval Sea Systems Command
3010-01-442-1954211058438 POSSIBLE MATCH
YOKE,UNIVERSAL JOINT,NONVEHICULA
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
3010-01-442-1955218027409 POSSIBLE MATCH
UNIVERSAL JOINT,NONVEHICULAR
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
3040-01-442-20026111403-A19 POSSIBLE MATCH
BRAKE BAND AND LINING
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
3020-01-442-2006211070519 POSSIBLE MATCH
GEAR,WORM WHEEL
Possible match (shared part number)Naval Sea Systems Command
4820-01-443-75176111403-2 POSSIBLE MATCH
FLANGE,GLAND,VALVE
Possible match (shared part number)Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
6111403-C1 PRIMARY Naval Sea Systems Command (USA)
581-6405750 AHWA FIND C1 Naval Sea Systems Command (USA)
Reference documents
ReferenceMeaning
6405750 D/9 Drawing number reference only
Naval Sea Systems Command
Related Parts
3040-01-441-4883POSSIBLE MATCH
SHAFT,SHOULDERED
C611-1403-AHWA-A4
3040-01-441-5040POSSIBLE MATCH
SHAFT,STRAIGHT
C611-1403-AHWA-9
3010-01-442-1727POSSIBLE MATCH
UNIVERSAL JOINT,NONVEHICULAR
218027408
3010-01-442-1946POSSIBLE MATCH
UNIVERSAL JOINT,NONVEHICULAR
218016495A
3010-01-442-1951POSSIBLE MATCH
YOKE,UNIVERSAL JOINT,NONVEHICULA
211058437
3010-01-442-1954POSSIBLE MATCH
YOKE,UNIVERSAL JOINT,NONVEHICULA
211058438
3010-01-442-1955POSSIBLE MATCH
UNIVERSAL JOINT,NONVEHICULAR
218027409
3040-01-442-2002POSSIBLE MATCH
BRAKE BAND AND LINING
6111403-A19
3020-01-442-2006POSSIBLE MATCH
GEAR,WORM WHEEL
211070519
4820-01-443-7517POSSIBLE MATCH
FLANGE,GLAND,VALVE
6111403-2
3040-01-444-3989POSSIBLE MATCH
SHAFT,STRAIGHT
C611-1403 FIND AHWA 8

Frequently Asked Questions

What is NSN 3040-01-435-5865?

NSN 3040-01-435-5865 is a Shaft,shouldered, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.

What part numbers are listed for NSN 3040-01-435-5865?

NSN 3040-01-435-5865 has 2 manufacturer part numbers on file: 6111403-C1 (Naval Sea Systems Command), 581-6405750 AHWA FIND C1 (Naval Sea Systems Command).

What NSN replaces 3040-01-435-5865?

11 possible matches (shared part number, not a government interchangeability claim): 3040-01-441-4883, 3040-01-441-5040, 3010-01-442-1727. Verify interchangeability with system specifications before substitution.

What are the specifications of 6111403-C1?

Key specifications for 6111403-C1: Surface Finish: 63.0 MICROINCHES; First End Width Across Flats: 0.999 INCHES NOMINAL IN; Second End Hole Diameter: 0.2500 INCHES NOMINAL IN; Second End External Thread Length: 0.8750 INCHES NOMINAL IN. 15 specifications are documented in the U.S. Government catalog.

Is NSN 3040-01-435-5865 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

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✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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