The Valve,safety Relief, cataloged under National Stock Number 4820-01-565-6499, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Rbsl Washington. Government technical data includes 10 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-565-6499 |
| Primary Part Number | FV2199051 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Rbsl Washington |
| Status | ACTIVE |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) FIRST END |
| Connection Type | THREADED CARTRIDGE FIRST END |
| Style Designator | SCREW-IN CARTRIDGE |
| Operating Pressure | 5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Maximum Operating Temp | 93.0 CELSIUS SINGLE RESPONSE DEGC |
| Media for Which Designed | OIL, HYDRAULIC FIRST RESPONSE |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF FIRST END |
| Valve Discharge Flow Rate | 30.0 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 |
|---|---|
| FV2199051 | Rbsl Washington (GBR) |
| C130706 | Parker Hannifin Limited (GBR) |
| Reference | Meaning |
|---|---|
| M2303-820010 | 6/9 Informative reference only Forsvarets Materielverk |
| RAH101S50 | 5/9 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division |
| RAH101S50 | 3/2 Design control — primary reference U.S. Government activity |
| RAH101S50 | 3/9 Design control — primary reference Parker Hannifin Corporation Dba Gresen Hydraulics Div Hydraulic Valve Division |
NSN 4820-01-565-6499 is a Valve,safety Relief, manufactured by Rbsl Washington, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-565-6499 has 2 manufacturer part numbers on file: FV2199051 (Rbsl Washington), C130706 (Parker Hannifin Limited).
Key specifications for FV2199051: Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) FIRST END; Connection Type: THREADED CARTRIDGE FIRST END; Style Designator: SCREW-IN CARTRIDGE; Operating Pressure: 5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 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.