The Sleeve,hydraulic Relief Valve, cataloged under National Stock Number 4820-01-179-6409, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-179-6409 |
| Item Name | Sleeve,hydraulic Relief Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL CORROSION RESISTING,AMS 5610D |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 1028-5-3350 | 3/2 Design control — primary reference U.S. Government activity |
| 3,324,604 1511 | 5/9 Secondary reference U.S. Government activity |
| 3,324,604PC16 | 5/9 Secondary reference U.S. Government activity |
| 1511 | 3/2 Design control — primary reference U.S. Government activity |
| 3,324,604 | D/9 Drawing number reference only U.S. Government activity |
NSN 4820-01-179-6409 is a Sleeve,hydraulic Relief Valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-179-6409: General Characteristics Item Description: STEEL CORROSION RESISTING,AMS 5610D; End Item Identification: HYDRAULIC RELIEF VALVE. 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.