The Valve,safety Relief, cataloged under National Stock Number 4820-01-284-4868, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Danfoss Fluid Power Inc Easley Opn. Government technical data includes 8 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-284-4868 |
| Primary Part Number | 11031484 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Danfoss Fluid Power Inc Easley Opn |
| Status | ACTIVE |
| Flow Control Device | PISTON |
| Operating Pressure | 5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Adjustable Pressure Range | +250.0 TO 1500.0 POUNDS PER SQUARE INCH LBS |
| Media for Which Designed | OIL SINGLE RESPONSE |
| Material | STEEL FLOW CONTROL DEVICE |
| Material | ALUMINUM ALLOY BODY |
| Valve Discharge Flow Rate | 40.0 GALLONS PER MINUTE |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| 11031484 PRIMARY | Danfoss Fluid Power Inc Easley Opn (USA) |
| Reference | Meaning |
|---|---|
| F20064 K001 | D/9 Drawing number reference only U.S. Government activity |
| 158B0118 | 5/9 Secondary reference Danfoss Fluid Power Inc Easley Opn |
| 1LL23-F12-1-15S | 5/9 Secondary reference Danfoss Fluid Power Inc Easley Opn |
| F20064K001 ITEM 63 | 5/9 Secondary reference U.S. Government activity |
| 1LL23-F12-T-15S | 5/9 Secondary reference Danfoss Fluid Power Inc Easley Opn |
NSN 4820-01-284-4868 is a Valve,safety Relief, manufactured by Danfoss Fluid Power Inc Easley Opn, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-284-4868 has 1 manufacturer part number on file: 11031484 (Danfoss Fluid Power Inc Easley Opn).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-411-4240. Verify interchangeability with system specifications before substitution.
Key specifications for 11031484: Flow Control Device: PISTON; Operating Pressure: 5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Adjustable Pressure Range: +250.0 TO 1500.0 POUNDS PER SQUARE INCH LBS; Special Features: DUAL RELIEF VALVE,DIFFERENTIAL PISTON TYPE. 8 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.