The Valve,safety Relief, cataloged under National Stock Number 4820-01-224-8605, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is L3harris Technologies, Inc Div Space & Airborne Systems. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-224-8605 |
| Primary Part Number | G400210-2 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | L3harris Technologies, Inc Div Space & Airborne Systems |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Connection Type | THREADED EXTERNAL PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.562 INCHES ALL ENDS IN |
| Maximum Operating Temp | 65.0 CELSIUS SINGLE RESPONSE DEGC |
| Media for Which Designed | NITROGEN, GASEOUS SECOND RESPONSE |
| Media for Which Designed | AIR FIRST RESPONSE |
| Thread Class | 3A ALL ENDS A |
| Material | PLASTIC FLOW CONTROL DEVICE |
| Material | ALUMINUM ALLOY 2024 BODY |
| Material | LEAD PACKING |
| Thread Series Designator | UNF ALL ENDS |
| Opening Pressure Setting | 1.0 POUNDS PER SQUARE INCH LBS |
| 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 |
|---|---|
| G400210-2 PRIMARY | L3harris Technologies, Inc Div Space & Airborne Systems (USA) |
| 1573-2-1 PRIMARY | Pneudraulics, Inc. (USA) |
| Reference | Meaning |
|---|---|
| G400210 | 7/2 Vendor item drawing reference L3harris Technologies, Inc Div Space & Airborne Systems |
NSN 4820-01-224-8605 is a Valve,safety Relief, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-224-8605 has 2 manufacturer part numbers on file: G400210-2 (L3harris Technologies, Inc Div Space & Airborne Systems), 1573-2-1 (Pneudraulics, Inc.).
Key specifications for G400210-2: Flow Control Device: POPPET; Connection Style: PLAIN (PIPE) ALL ENDS; Connection Type: THREADED EXTERNAL PIPE ALL ENDS; Style Designator: STRAIGHT THRU. 16 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.