The Swivel and Link Assembly, cataloged under National Stock Number 4030-01-578-3558, is classified within Federal Supply Class 4030 (Fittings for Rope, Cable, and Chain) of the Rope, Cable, Chain, and Fittings group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 6 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4030-01-578-3558 |
| Primary Part Number | 9M180L12 |
| Item Name | Swivel and Link Assembly |
| FSC / FSG | 4030 / 40 — Fittings for Rope, Cable, and Chain |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Inside Width | 0.180 INCHES MINIMUM IN |
| Reach Length | 2.370 INCHES MINIMUM AND 2.870 INCHES MAXIMUM IN |
| Style Designator | SINGLE |
| Effective Length | 0.650 INCHES MINIMUM IN |
| Surface Treatment | NICKEL |
| Material | COPPER ALLOY OR STEEL CORROSION RESISTING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4030-01-578-3558 is a Swivel and Link Assembly, manufactured by The Boeing Company Div Defense, classified under FSC 4030, Fittings for Rope, Cable, and Chain. Status: active.
NSN 4030-01-578-3558 has 2 manufacturer part numbers on file: 9M180L12 (The Boeing Company Div Defense), 850-5-34 (Rome Specialty Company Inc Dba Rosco Div).
Key specifications for 9M180L12: Inside Width: 0.180 INCHES MINIMUM IN; Reach Length: 2.370 INCHES MINIMUM AND 2.870 INCHES MAXIMUM IN; Style Designator: SINGLE; Effective Length: 0.650 INCHES MINIMUM 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.
NSN 4030-01-578-3558 has DEMIL Code B. 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.