The Coupling,shaft,flexible, cataloged under National Stock Number 3010-00-541-3440, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Merkle-Korff Industries Inc. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3010-00-541-3440 |
| Primary Part Number | FLEX0ACTI0NC0UPLING5SN |
| Item Name | Coupling,shaft,flexible |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Merkle-Korff Industries Inc |
| Status | ACTIVE |
| Securing Method | THREADED HOLE(S) SECOND END |
| Threaded Hole Location | BOTH ENDS: LOCATED 2 EACH END 90 DEG APART |
| Bore Length | 0.28125 INCHES NOMINAL BOTH ENDS IN |
| Design Type | INSERT |
| Outside Diameter | 1.250 INCHES NOMINAL IN |
| Bore Shape | STRAIGHT BOTH ENDS |
| Threaded Hole Quantity | 4 BOTH ENDS |
| Thread Size Designator | 10-32 BOTH ENDS |
| Bore Diameter | 0.3125 INCHES NOMINAL BOTH ENDS IN |
| Furnished Items and Quantity | 4 SETSCREWS |
| 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 |
|---|---|
| FLEX0ACTI0NC0UPLING5SN PRIMARY | Merkle-Korff Industries Inc (USA) |
NSN 3010-00-541-3440 is a Coupling,shaft,flexible, manufactured by Merkle-Korff Industries Inc, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-00-541-3440 has 1 manufacturer part number on file: FLEX0ACTI0NC0UPLING5SN (Merkle-Korff Industries Inc).
Key specifications for FLEX0ACTI0NC0UPLING5SN: Securing Method: THREADED HOLE(S) SECOND END; Threaded Hole Location: BOTH ENDS: LOCATED 2 EACH END 90 DEG APART; Bore Length: 0.28125 INCHES NOMINAL BOTH ENDS IN; Design Type: INSERT. 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.