The Coupling,shaft,rigid, cataloged under National Stock Number 3010-00-684-2791, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3010-00-684-2791 |
| Primary Part Number | 350C185X4 |
| Item Name | Coupling,shaft,rigid |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| Status | ACTIVE |
| Bore Length | 2.8120 INCHES NOMINAL FIRST END IN |
| Bore Length | 3.3480 INCHES NOMINAL SECOND END IN |
| Overall Diameter | 3.438 INCHES NOMINAL IN |
| Style Designator | DOUBLE CONE SLEEVE COMPRESSION |
| Features Provided | KEYWAY AND BORE COUNTERBORE |
| Bore Shape | STRAIGHT BOTH ENDS |
| Body Material | STEEL |
| Bore Diameter | 1.0000 INCHES NOMINAL SECOND END IN |
| Bore Diameter | 1.2490 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 |
|---|---|
| 350C185X4 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| Reference | Meaning |
|---|---|
| 350C185X4 | 3/9 Design control — primary reference U.S. Government activity |
| 350C185X4 | 5/9 Secondary reference Ingersoll Rand Co |
| W350C185X4 | 5/9 Secondary reference Ingersoll Rand Co |
NSN 3010-00-684-2791 is a Coupling,shaft,rigid, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-00-684-2791 has 1 manufacturer part number on file: 350C185X4 (Curtiss-Wright Electro-Mechanical Corporation Div Epd).
Key specifications for 350C185X4: Bore Length: 2.8120 INCHES NOMINAL FIRST END IN; Bore Length: 3.3480 INCHES NOMINAL SECOND END IN; Overall Diameter: 3.438 INCHES NOMINAL IN; Style Designator: DOUBLE CONE SLEEVE COMPRESSION. 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.