The Insert,flexible Coupling, cataloged under National Stock Number 3010-01-204-8013, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Timken Gears & Services Inc. Div Philadelphia Gear. Government technical data includes 6 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3010-01-204-8013 |
| Primary Part Number | 744C489-1-V |
| Item Name | Insert,flexible Coupling |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Timken Gears & Services Inc. Div Philadelphia Gear |
| Status | ACTIVE |
| Overall Thickness | 2.250 INCHES NOMINAL IN |
| Style Designator | MULTIPLE HOLES, ROUND BORE |
| Bolt Hole Diameter | 1.000 INCHES NOMINAL IN |
| Overall Outside Diameter | 17.399 INCHES NOMINAL IN |
| Bolt Hole Quantity | 20 |
| Bolt Circle Diameter | 14.000 INCHES NOMINAL 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 |
|---|---|
| 744C489-1-V PRIMARY | Timken Gears & Services Inc. Div Philadelphia Gear (USA) |
| Reference | Meaning |
|---|---|
| 744C489 | D/9 Drawing number reference only General Electric Company |
| 744C489PC1 | 5/9 Secondary reference General Electric Company |
| 747C261 | D/9 Drawing number reference only General Electric Company |
| 747C261 PIECE 2 | 5/9 Secondary reference General Electric Company |
| 744C489P-1 | 5/9 Secondary reference Timken Gears & Services Inc. Div Philadelphia Gear |
| 744C489-1 | 5/9 Secondary reference General Electric Company |
| 744C489P1 | C/1 Advisory reference — outside the item-of-supply concept General Electric Company |
NSN 3010-01-204-8013 is a Insert,flexible Coupling, manufactured by Timken Gears & Services Inc. Div Philadelphia Gear, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-01-204-8013 has 1 manufacturer part number on file: 744C489-1-V (Timken Gears & Services Inc. Div Philadelphia Gear).
1 possible match (shared part number, not a government interchangeability claim): 3010-01-204-8014. Verify interchangeability with system specifications before substitution.
Key specifications for 744C489-1-V: Overall Thickness: 2.250 INCHES NOMINAL IN; Style Designator: MULTIPLE HOLES, ROUND BORE; Bolt Hole Diameter: 1.000 INCHES NOMINAL IN; Overall Outside Diameter: 17.399 INCHES NOMINAL IN. 6 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.