The Shaft,shouldered, cataloged under National Stock Number 3040-00-031-7542, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Eaton Corp Dba Eaton Aerospace Jackson. Government technical data includes 20 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-031-7542 |
| Primary Part Number | TF4620 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Eaton Corp Dba Eaton Aerospace Jackson |
| Status | ACTIVE |
| First End Tongue Thickness | 0.165 INCHES MINIMUM AND 0.167 INCHES MAXIMUM IN |
| First End Pitch Diameter | 0.4583 INCHES NOMINAL IN |
| Step Quantity | 8 |
| First End Diameter | 0.5643 INCHES MINIMUM AND 0.5686 INCHES MAXIMUM IN |
| First End Tongue Width | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| First End Spline Major Diameter | 0.4950 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN |
| Second End Diameter | 0.4900 INCHES MINIMUM AND 0.5100 INCHES MAXIMUM IN |
| Second End Step Length | 0.1870 INCHES MINIMUM AND 0.1930 INCHES MAXIMUM IN |
| Largest Step Diameter | 0.6850 INCHES MINIMUM AND 0.6950 INCHES MAXIMUM IN |
| First End Style | SPLINED (INVOLUTE) |
| First End Pressure Angle | 30.0 DEGREES NOMINAL |
| First End Spline Length | 0.5312 INCHES NOMINAL IN |
| Second End Tongue Width | 0.4900 INCHES MINIMUM AND 0.5100 INCHES MAXIMUM IN |
| First End Spline Quantity | 11 |
| End Similarity | NOT IDENTICAL |
| Second End Tongue Thickness | 0.1645 INCHES MINIMUM AND 0.1665 INCHES MAXIMUM IN |
| Second End Style | TONGUE ROUNDED ENDS |
| First End Spline Minor Diameter | 0.4103 INCHES NOMINAL IN |
| Material | STEEL |
| Second End Spline Length | 0.531 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| TF4620 PRIMARY | Eaton Corp Dba Eaton Aerospace Jackson (USA) |
NSN 3040-00-031-7542 is a Shaft,shouldered, manufactured by Eaton Corp Dba Eaton Aerospace Jackson, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-031-7542 has 1 manufacturer part number on file: TF4620 (Eaton Corp Dba Eaton Aerospace Jackson).
Key specifications for TF4620: First End Tongue Thickness: 0.165 INCHES MINIMUM AND 0.167 INCHES MAXIMUM IN; First End Pitch Diameter: 0.4583 INCHES NOMINAL IN; Step Quantity: 8; First End Diameter: 0.5643 INCHES MINIMUM AND 0.5686 INCHES MAXIMUM IN. 20 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 3040-00-031-7542 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.