The Coupling,shaft,flexible, cataloged under National Stock Number 3010-01-513-9720, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is American Vulkan Corporation Dba Vulkan Corp. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Coupling,shaft,flexible |
| FSC / FSG | 3010 — Torque Converters and Speed Changers (FSG 30) |
| Manufacturers | American Vulkan Corporation Dba Vulkan Corp (CAGE 60248); Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (CAGE 61208) |
| Parameter | Value |
|---|---|
| NSN | 3010-01-513-9720 |
| Primary Part Number | 1KT4110019 |
| Item Name | Coupling,shaft,flexible |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | American Vulkan Corporation Dba Vulkan Corp |
| Status | ACTIVE |
| 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 |
|---|---|
| 1KT4110019 PRIMARY | American Vulkan Corporation Dba Vulkan Corp (USA) |
| PX-10748 | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA) |
| Reference | Meaning |
|---|---|
| TORFLEX 1600 | 5/9 Secondary reference American Vulkan Corporation Dba Vulkan Corp |
NSN 3010-01-513-9720 is a Coupling,shaft,flexible, manufactured by American Vulkan Corporation Dba Vulkan Corp, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-01-513-9720 has 2 manufacturer part numbers on file: 1KT4110019 (American Vulkan Corporation Dba Vulkan Corp), PX-10748 (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic).
Key specifications for 1KT4110019: Part Name Assigned by Controlling Agency: TORFLEX MULT-STAGE COUPLING; End Item Identification: GEAR, MARINE TRANSMISSION. 0 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.