The Shaft,shouldered, cataloged under National Stock Number 3040-00-776-0431, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Safran Power Usa Llc. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-776-0431 |
| Primary Part Number | 31220-1016 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Safran Power Usa Llc |
| Status | ACTIVE |
| First End Diameter | 0.5190 INCHES MINIMUM AND 0.5200 INCHES MAXIMUM IN |
| First End Spline Major Diameter | 0.5190 INCHES MINIMUM AND 0.5200 INCHES MAXIMUM IN |
| First End Style | SPLINED (STRAIGHT) |
| First End Spline Length | 0.140 INCHES NOMINAL IN |
| First End Spline Quantity | 6 |
| End Similarity | NOT IDENTICAL |
| First End Spline Minor Diameter | 0.4580 INCHES NOMINAL IN |
| Material | STEEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 31220-1016 PRIMARY | Safran Power Usa Llc (USA) |
| Reference | Meaning |
|---|---|
| AP31220-1016 | 5/9 Secondary reference Aircraft Parts Corporation |
| 31220-1016 | 5/9 Secondary reference Lucas Aerospace Power Equipment Corporation |
NSN 3040-00-776-0431 is a Shaft,shouldered, manufactured by Safran Power Usa Llc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-776-0431 has 1 manufacturer part number on file: 31220-1016 (Safran Power Usa Llc).
Key specifications for 31220-1016: First End Diameter: 0.5190 INCHES MINIMUM AND 0.5200 INCHES MAXIMUM IN; First End Spline Major Diameter: 0.5190 INCHES MINIMUM AND 0.5200 INCHES MAXIMUM IN; First End Style: SPLINED (STRAIGHT); Overall Length: 4.108 INCHES MINIMUM AND 4.153 INCHES MAXIMUM IN. 8 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.
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.