The Torque Limiter, cataloged under National Stock Number 1680-00-280-2698, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 1680-00-280-2698 |
| Primary Part Number | D3443 |
| Item Name | Torque Limiter |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division |
| Status | ACTIVE |
| General Characteristics Item Description | 4.410 IN. MIN,4.430 IN. MAX LG,WITH A SPLINE ON ONE END CONTAINING 11TEETH IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| D3443 PRIMARY | Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division (USA) |
| Reference | Meaning |
|---|---|
| 741678-101 | 7/2 Vendor item drawing reference U.S. Government activity |
| D3443 | 5/9 Secondary reference Eaton Motor Site |
NSN 1680-00-280-2698 is a Torque Limiter, manufactured by Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-00-280-2698 has 1 manufacturer part number on file: D3443 (Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division).
1 possible match (shared part number, not a government interchangeability claim): 2920-01-175-7718. Verify interchangeability with system specifications before substitution.
Key specifications for D3443: General Characteristics Item Description: 4.410 IN. MIN,4.430 IN. MAX LG,WITH A SPLINE ON ONE END CONTAINING 11TEETH IN; End Item Identification: ACFT MODEL S3A. 1 specification is 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.
NSN 1680-00-280-2698 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.