The Coupling,shaft,rigid, cataloged under National Stock Number 3010-01-283-8939, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Magnaloy Coupling Co Div of Douville-Johnston Corp. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3010-01-283-8939 |
| Primary Part Number | M470U9 |
| Item Name | Coupling,shaft,rigid |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Magnaloy Coupling Co Div of Douville-Johnston Corp |
| Status | ACTIVE |
| Spline Type | STRAIGHT SECOND END |
| Style Designator | PLAIN SLEEVE |
| Spline Major Diameter | 1.7500 INCHES NOMINAL SECOND END IN |
| Bore Shape | STRAIGHT FIRST END |
| Bore Shape | SPLINED SECOND END |
| Spline Quantity | 13 SECOND END |
| Bore Diameter | 1.875 INCHES NOMINAL FIRST END IN |
| 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 |
|---|---|
| M470U9 PRIMARY | Magnaloy Coupling Co Div of Douville-Johnston Corp (USA) |
| Reference | Meaning |
|---|---|
| M470U | 5/9 Secondary reference Magnaloy Coupling Co Div of Douville-Johnston Corp |
NSN 3010-01-283-8939 is a Coupling,shaft,rigid, manufactured by Magnaloy Coupling Co Div of Douville-Johnston Corp, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-01-283-8939 has 1 manufacturer part number on file: M470U9 (Magnaloy Coupling Co Div of Douville-Johnston Corp).
Key specifications for M470U9: Spline Type: STRAIGHT SECOND END; Style Designator: PLAIN SLEEVE; Spline Major Diameter: 1.7500 INCHES NOMINAL SECOND END IN; Bore Shape: STRAIGHT FIRST END. 7 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.