The Connecting Link,rigid, cataloged under National Stock Number 3040-00-409-2157, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 7 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-409-2157 |
| Primary Part Number | A51C11055-3 |
| Item Name | Connecting Link,rigid |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Body Diameter | 1.000 INCHES NOMINAL IN |
| Body Construction | TUBULAR |
| Link Style | TUBULAR SHANK |
| Material Document and Classification | WW-T-700/3, ALLOY 2024, TEMP T62 FED SPEC SINGLE MATERIAL RESPONSE |
| End Attachment Style | EYE FIRST END |
| Surface Treatment | PAINT |
| Material | ALUMINUM ALLOY |
| 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 |
|---|---|
| A51C11055-3 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| A51C11055-3 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| A51C11055-3 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| A51C11055 | D/9 Drawing number reference only Northrop Grumman Systems Corporation |
NSN 3040-00-409-2157 is a Connecting Link,rigid, manufactured by Northrop Grumman Systems Corporation, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-409-2157 has 1 manufacturer part number on file: A51C11055-3 (Northrop Grumman Systems Corporation).
Key specifications for A51C11055-3: Body Diameter: 1.000 INCHES NOMINAL IN; Body Construction: TUBULAR; Link Style: TUBULAR SHANK; Material Document and Classification: WW-T-700/3, ALLOY 2024, TEMP T62 FED SPEC SINGLE MATERIAL RESPONSE. 7 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.