The Valve,safety Relief, cataloged under National Stock Number 4820-01-438-4884, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Bosch Rexroth Corporation Div Industrial Hydraulics. Government technical data includes 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-438-4884 |
| Primary Part Number | DBDS6K-1X/200/J |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Bosch Rexroth Corporation Div Industrial Hydraulics |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Furnished Items and Quantity | 1 LOCKING DEVICE AND 1 CAP |
| Connection Style | PLAIN (SCREW-IN CARTRIDGE) ALL ENDS |
| Minimum Operating Temp | -22.0 FAHRENHEIT DEGF |
| Connection Type | THREADED CARTRIDGE ALL ENDS |
| Style Designator | SCREW-IN CARTRIDGE |
| Operating Pressure | 5800.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.438 INCHES ALL ENDS IN |
| Maximum Operating Temp | 158.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Disk Loading Method | SPRING |
| Media for Which Designed | HYDRAULIC FLUID, PETROLEUM BASE SINGLE RESPONSE |
| Thread Series Designator | UNF ALL ENDS |
| Opening Pressure Setting | 2900.0 POUNDS PER SQUARE INCH LBS |
| Valve Discharge Flow Rate | 87.0 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 |
|---|---|
| DBDS6K-1X/200/J PRIMARY | Bosch Rexroth Corporation Div Industrial Hydraulics (USA) |
| Reference | Meaning |
|---|---|
| DBDS6K-1X/200/J | 5/9 Secondary reference Hydrotech Inc |
| DBDS6K-18/200/J | C/1 Advisory reference — outside the item-of-supply concept Bosch Rexroth Corporation Div Industrial Hydraulics |
NSN 4820-01-438-4884 is a Valve,safety Relief, manufactured by Bosch Rexroth Corporation Div Industrial Hydraulics, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-438-4884 has 1 manufacturer part number on file: DBDS6K-1X/200/J (Bosch Rexroth Corporation Div Industrial Hydraulics).
Key specifications for DBDS6K-1X/200/J: Flow Control Device: POPPET; Furnished Items and Quantity: 1 LOCKING DEVICE AND 1 CAP; Connection Style: PLAIN (SCREW-IN CARTRIDGE) ALL ENDS; Minimum Operating Temp: -22.0 FAHRENHEIT DEGF. 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.