The Coupling,shaft,flexible, cataloged under National Stock Number 3010-01-503-7859, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is TB Woods's Corporation. Government technical data includes 12 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 | 3010-01-503-7859 |
| Primary Part Number | 7S X 1-1/4 X 7S X 1-1/8/7E |
| Item Name | Coupling,shaft,flexible |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | TB Woods's Corporation |
| Status | ACTIVE |
| Keyway Depth | 0.1250 INCHES NOMINAL BOTH ENDS IN |
| Securing Method | SCREW BOTH ENDS |
| Bore Length | 3.9375 INCHES NOMINAL BOTH ENDS IN |
| Design Type | INSERT |
| Keying Facility Type | KEYWAY BOTH ENDS |
| Outside Diameter | 4.625 INCHES NOMINAL IN |
| Bore Shape | STRAIGHT BOTH ENDS |
| Keying Facility Quantity | 1 BOTH ENDS |
| Keyway Width | 0.250 INCHES NOMINAL BOTH ENDS IN |
| Bore Diameter | 1.2500 INCHES NOMINAL FIRST END IN |
| Bore Diameter | 1.1250 INCHES NOMINAL SECOND END IN |
| Insert Material | RUBBER SYNTHETIC |
| 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 |
|---|---|
| 7S X 1-1/4 X 7S X 1-1/8/7E PRIMARY | TB Woods's Corporation (USA) |
NSN 3010-01-503-7859 is a Coupling,shaft,flexible, manufactured by TB Woods's Corporation, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-01-503-7859 has 1 manufacturer part number on file: 7S X 1-1/4 X 7S X 1-1/8/7E (TB Woods's Corporation).
Key specifications for 7S X 1-1/4 X 7S X 1-1/8/7E: Keyway Depth: 0.1250 INCHES NOMINAL BOTH ENDS IN; Securing Method: SCREW BOTH ENDS; Bore Length: 3.9375 INCHES NOMINAL BOTH ENDS IN; Design Type: INSERT. 12 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.