The Coupling,shaft,flexible, cataloged under National Stock Number 3010-01-221-3743, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3010-01-221-3743 |
| Item Name | Coupling,shaft,flexible |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Status | ACTIVE |
| Outside Diameter | 9.750 INCHES NOMINAL IN |
| Features Provided | EXPOSED COUPLING BOLT TYPE |
| Bore Shape | STRAIGHT BOTH ENDS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| SS845-2007688 ASSEMBLY RL | 5/9 Secondary reference U.S. Government activity |
| 2640-068 ASSY RL | 3/2 Design control — primary reference U.S. Government activity |
| 2640-268 | D/9 Drawing number reference only U.S. Government activity |
| 2640-268 ASSEMBLY RL | 5/9 Secondary reference U.S. Government activity |
| SS845-2007688 | D/9 Drawing number reference only U.S. Government activity |
NSN 3010-01-221-3743 is a Coupling,shaft,flexible, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
Key specifications for 3010-01-221-3743: Overall Length: 7.500 INCHES NOMINAL IN; Outside Diameter: 9.750 INCHES NOMINAL IN; Features Provided: EXPOSED COUPLING BOLT TYPE; Bore Shape: STRAIGHT BOTH ENDS. 3 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.