The Valve,safety Relief, cataloged under National Stock Number 4820-01-340-4038, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-340-4038 |
| Primary Part Number | R6PH20 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division |
| Status | ACTIVE |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Valve Discharge Flow Rate | 40.0 GALLONS PER MINUTE |
| Thread Series Designator | NPT ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| Opening Pressure Setting | 1500.0 POUNDS PER SQUARE INCH LBS |
| Nominal Thread Size | 0.750 INCHES ALL ENDS IN |
| Connection Style | PLAIN,OPTIONAL END(PIPE) ALL ENDS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Adjustable Pressure Range | +150.0 TO 3000.0 POUNDS PER SQUARE INCH LBS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 6668586 | Naval Sea Systems Command (USA) |
| 6668586 ITEM VR-3/4 | Naval Sea Systems Command (USA) |
| R6PH20 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (USA) |
NSN 4820-01-340-4038 is a Valve,safety Relief, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-340-4038 has 3 cross-referenced part numbers: 6668586 (Naval Sea Systems Command), 6668586 ITEM VR-3/4 (Naval Sea Systems Command), R6PH20 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division).
There is 1 known substitute for 4820-01-340-4038: 2530-01-338-2304. Verify interchangeability with system specifications before substitution.
Key specifications for R6PH20: Connection Type: THREADED INTERNAL PIPE ALL ENDS; Valve Discharge Flow Rate: 40.0 GALLONS PER MINUTE; Thread Series Designator: NPT ALL ENDS; Valve Operation Method: AUTOMATIC. 9 total characteristics are documented in the Federal Logistics Information System.