The Coupling,shaft,flexible, cataloged under National Stock Number 3010-01-372-9789, 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 9 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 | 3010-01-372-9789 |
| Primary Part Number | M500B1412C-12012C-570U |
| Item Name | Coupling,shaft,flexible |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Magnaloy Coupling Co Div of Douville-Johnston Corp |
| Status | ACTIVE |
| Spline Minor Diameter | 1.0810 INCHES NOMINAL BOTH ENDS IN |
| Securing Method | CLAMP BOTH ENDS |
| Design Type | INSERT |
| Spline Length | 1.640 INCHES NOMINAL BOTH ENDS IN |
| Spline Major Diameter | 1.2500 INCHES NOMINAL BOTH ENDS IN |
| Outside Diameter | 4.800 INCHES NOMINAL IN |
| Bore Shape | SPLINED BOTH ENDS |
| Spline Quantity | 14 BOTH ENDS |
| Insert Material | RUBBER |
| 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 |
|---|---|
| M500B1412C-12012C-570U PRIMARY | Magnaloy Coupling Co Div of Douville-Johnston Corp (USA) |
NSN 3010-01-372-9789 is a Coupling,shaft,flexible, manufactured by Magnaloy Coupling Co Div of Douville-Johnston Corp, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-01-372-9789 has 1 manufacturer part number on file: M500B1412C-12012C-570U (Magnaloy Coupling Co Div of Douville-Johnston Corp).
Key specifications for M500B1412C-12012C-570U: Spline Minor Diameter: 1.0810 INCHES NOMINAL BOTH ENDS IN; Securing Method: CLAMP BOTH ENDS; Design Type: INSERT; Spline Length: 1.640 INCHES NOMINAL BOTH ENDS IN. 9 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.