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NSN 3040-01-497-3470Government record, cited
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Adapter, Spline3040-01-497-3470

NSN 3040-01-497-3470 · NIIN 014973470 · Part number 566-7067168-4
Naval Sea Systems Command · FSC 3040 — Miscellaneous Power Transmission Equipment · FSG 30 — Mechanical Power Transmission Equipment · CAGE 53711
Government record, cited
NSN 3040-01-497-3470 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-497-3470. Manufacturer of record part number: 566-7067168-4.
Also searched as  3040-01-497-3470 · 3040014973470 · NIIN 014973470 · 01-497-3470 · FSC 3040 Miscellaneous Power Transmission Equipment · CAGE 53711 · 566-7067168-4 · 7067168 · H625-0306-4
Nearby stock numbers  ·
Features
  • Adapter,spline — FSC 3040
  • Spline Minor Diameter: 14.800 INCHES MINIMUM AND 14.820 INCHES MAXIMUM IN
  • Spline Type: INTERNAL
  • Teeth Quantity: 38
  • Outside Diameter: 20.375 INCHES NOMINAL IN
  • Spline Length: 20.255 INCHES MINIMUM AND 20.258 INCHES MAXIMUM IN
  • Spline Major Diameter: 16.003 INCHES MAXIMUM IN
  • Material: COPPER ALLOY
Identification
  • NSN: 3040-01-497-3470
  • NIIN: 014973470
  • FSC: 3040 — Miscellaneous Power Transmission Equipment
  • FSG: 30 — Mechanical Power Transmission Equipment
  • Primary part number: 566-7067168-4
  • Manufacturer: Naval Sea Systems Command
General Description

The Adapter,spline, cataloged under National Stock Number 3040-01-497-3470, 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 7 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government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
NSN3040-01-497-3470
Primary Part Number566-7067168-4
Item NameAdapter,spline
FSC / FSG3040 / 30 — Miscellaneous Power Transmission Equipment
ManufacturerNaval Sea Systems Command
StatusACTIVE
Spline Minor Diameter14.800 INCHES MINIMUM AND 14.820 INCHES MAXIMUM IN
Spline TypeINTERNAL
Teeth Quantity38
Outside Diameter20.375 INCHES NOMINAL IN
Spline Length20.255 INCHES MINIMUM AND 20.258 INCHES MAXIMUM IN
Spline Major Diameter16.003 INCHES MAXIMUM IN
MaterialCOPPER ALLOY
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 8
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3040-01-497-4394566-7067168-A3 POSSIBLE MATCH
SHAFT ASSEMBLY,SHOULDERED
Possible match (shared part number)Naval Sea Systems Command
3040-01-497-4444566-7067168-A4 POSSIBLE MATCH
SHAFT ASSEMBLY,SHOULDERED
Possible match (shared part number)Naval Sea Systems Command
3040-01-497-4478566-7067168-20 POSSIBLE MATCH
COLLAR,SHAFT
Possible match (shared part number)Naval Sea Systems Command
5340-01-497-5840566-7067168-9 POSSIBLE MATCH
PAD,CUSHIONING
Possible match (shared part number)Naval Sea Systems Command
5340-01-497-5844566-7067168-11 POSSIBLE MATCH
PAD,CUSHIONING
Possible match (shared part number)Naval Sea Systems Command
5340-01-497-6068566-7067168-29 POSSIBLE MATCH
PAD,CUSHIONING
Possible match (shared part number)Naval Sea Systems Command
2030-01-498-0219566-7067168-A2 POSSIBLE MATCH
STEERING GEAR
Possible match (shared part number)Naval Sea Systems Command
2030-01-498-0226566-7067168-A1 POSSIBLE MATCH
STEERING GEAR
Possible match (shared part number)Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
566-7067168-4 PRIMARY Naval Sea Systems Command (USA)
Reference documents
ReferenceMeaning
7067168 D/9 Drawing number reference only
Naval Sea Systems Command
H625-0306-4 5/2 Secondary reference
U.S. Government activity
Related Parts
3040-01-497-4394POSSIBLE MATCH
SHAFT ASSEMBLY,SHOULDERED
566-7067168-A3
3040-01-497-4444POSSIBLE MATCH
SHAFT ASSEMBLY,SHOULDERED
566-7067168-A4
3040-01-497-4478POSSIBLE MATCH
COLLAR,SHAFT
566-7067168-20
5340-01-497-5840POSSIBLE MATCH
PAD,CUSHIONING
566-7067168-9
5340-01-497-5844POSSIBLE MATCH
PAD,CUSHIONING
566-7067168-11
5340-01-497-6068POSSIBLE MATCH
PAD,CUSHIONING
566-7067168-29
2030-01-498-0219POSSIBLE MATCH
STEERING GEAR
566-7067168-A2
2030-01-498-0226POSSIBLE MATCH
STEERING GEAR
566-7067168-A1

Frequently Asked Questions

What is NSN 3040-01-497-3470?

NSN 3040-01-497-3470 is a Adapter,spline, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.

What part numbers are listed for NSN 3040-01-497-3470?

NSN 3040-01-497-3470 has 1 manufacturer part number on file: 566-7067168-4 (Naval Sea Systems Command).

What NSN replaces 3040-01-497-3470?

8 possible matches (shared part number, not a government interchangeability claim): 3040-01-497-4394, 3040-01-497-4444, 3040-01-497-4478. Verify interchangeability with system specifications before substitution.

What are the specifications of 566-7067168-4?

Key specifications for 566-7067168-4: Spline Minor Diameter: 14.800 INCHES MINIMUM AND 14.820 INCHES MAXIMUM IN; Spline Type: INTERNAL; Teeth Quantity: 38; Outside Diameter: 20.375 INCHES NOMINAL IN. 7 specifications are documented in the U.S. Government catalog.

Is NSN 3040-01-497-3470 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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