The Coupling,shaft,flexible, cataloged under National Stock Number 3010-01-666-6158, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Lovejoy, Llc Div Lovejoy. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3010-01-666-6158 |
| Primary Part Number | C2.5 |
| Item Name | Coupling,shaft,flexible |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Lovejoy, Llc Div Lovejoy |
| Status | ACTIVE |
| Securing Method | SCREW BOTH ENDS |
| Keying Facility Type | KEYWAY FIRST END |
| Keying Facility Type | KEYWAY SECOND END |
| Bore Shape | STRAIGHT BOTH ENDS |
| Keying Facility Quantity | 1 SECOND END |
| Keying Facility Quantity | 1 FIRST END |
| Threaded Hole Quantity | 2 BOTH ENDS |
| Keyway Width | 0.3125 INCHES NOMINAL SECOND END IN |
| Keyway Width | 0.500 INCHES NOMINAL FIRST END IN |
| Bore Diameter | 1.375 INCHES NOMINAL SECOND END IN |
| Bore Diameter | 1.750 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 |
|---|---|
| C2.5 PRIMARY | Lovejoy, Llc Div Lovejoy (USA) |
| Reference | Meaning |
|---|---|
| 563-6743687 | D/9 Drawing number reference only Naval Sea Systems Command |
| 563-6743687 REV D ITEM NO 83 | 5/1 Secondary reference Naval Sea Systems Command |
NSN 3010-01-666-6158 is a Coupling,shaft,flexible, manufactured by Lovejoy, Llc Div Lovejoy, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-01-666-6158 has 1 manufacturer part number on file: C2.5 (Lovejoy, Llc Div Lovejoy).
Key specifications for C2.5: Securing Method: SCREW BOTH ENDS; Keying Facility Type: KEYWAY FIRST END; Keying Facility Type: KEYWAY SECOND END; Bore Shape: STRAIGHT BOTH ENDS. 11 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.