The Connecting Link,rigid, cataloged under National Stock Number 3040-01-678-6503, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-678-6503 |
| Primary Part Number | 12579571 |
| Item Name | Connecting Link,rigid |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Mounting Hole Quantity | 2 |
| Body Construction | SOLID |
| Link Style | RAISED FACE ENDS |
| Body Width | 51.0 MILLIMETERS NOMINAL MM |
| End Attachment Hole Diameter | 9.53 MILLIMETERS NOMINAL BOTH ENDS MM |
| End Attachment Width | 30.18 MILLIMETERS NOMINAL BOTH ENDS MM |
| End Attachment Style | RAISED FACE, ROUND BOTH ENDS |
| Material | STEEL |
| Mounting Hole Type | THRU HOLE |
| Body Thickness | 1.90 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 12579571 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| ML-8.00-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-01-678-6503 is a Connecting Link,rigid, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-678-6503 has 1 manufacturer part number on file: 12579571 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12579571: Mounting Hole Quantity: 2; Body Construction: SOLID; Link Style: RAISED FACE ENDS; Body Width: 51.0 MILLIMETERS NOMINAL MM. 10 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.