The Connecting Link,rigid, cataloged under National Stock Number 3040-00-554-7257, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3040-00-554-7257 |
| Primary Part Number | 339404 |
| Item Name | Connecting Link,rigid |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company |
| Status | ACTIVE |
| Body Construction | TUBULAR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 339404 | Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company (USA) |
| 339404 | Lockheed Martin Aeroparts, Inc. Dba Lockheed Martin Aeroparts Inc (USA) |
| Reference | Meaning |
|---|---|
| 339404 | 3/2 Design control — primary reference U.S. Government activity |
| 339404 | 5/9 Secondary reference Lockheed Martin Services, Llc |
| 339404 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Div Rotary and Mission Systems (rms) |
NSN 3040-00-554-7257 is a Connecting Link,rigid, manufactured by Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-554-7257 has 2 manufacturer part numbers on file: 339404 (Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company), 339404 (Lockheed Martin Aeroparts, Inc. Dba Lockheed Martin Aeroparts Inc).
1 possible match (shared part number, not a government interchangeability claim): 5962-01-072-8626. Verify interchangeability with system specifications before substitution.
Key specifications for 339404: Body Construction: TUBULAR. 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.
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.