The Shaft,shouldered, cataloged under National Stock Number 3040-01-221-0608, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is The Boeing Company. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-221-0608 |
| Primary Part Number | 7-317236806-5 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Step Quantity | 8 |
| First End Diameter | 0.7488 INCHES NOMINAL IN |
| First End Spline Major Diameter | 0.6692 INCHES NOMINAL IN |
| Largest Step Diameter | 0.4700 INCHES NOMINAL IN |
| First End External Thread Length | 0.5620 INCHES NOMINAL IN |
| First End Style | STRAIGHT SPLINED AND EXTERNALLY THREADED |
| First End Spline Length | 0.5500 INCHES NOMINAL IN |
| First End Spline Quantity | 4 |
| End Similarity | IDENTICAL |
| First End Spline Minor Diameter | 0.5280 INCHES NOMINAL IN |
| Material | STEEL COMP 4340 |
| 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 |
|---|---|
| 7-317236806-5 | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| 7-317236806-5 | 3/9 Design control — primary reference Mcdonnell Douglas Helicopter Co Inc |
NSN 3040-01-221-0608 is a Shaft,shouldered, manufactured by The Boeing Company, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-221-0608 has 1 manufacturer part number on file: 7-317236806-5 (The Boeing Company).
Key specifications for 7-317236806-5: Step Quantity: 8; First End Diameter: 0.7488 INCHES NOMINAL IN; First End Spline Major Diameter: 0.6692 INCHES NOMINAL IN; Largest Step Diameter: 0.4700 INCHES NOMINAL IN. 11 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 3040-01-221-0608 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.