The Valve,regulating,back Pressure, cataloged under National Stock Number 4820-01-230-9461, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-230-9461 |
| Item Name | Valve,regulating,back Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| General Characteristics Item Description | BODY STAINLESS STEEL; TRIM STAINLESS STEEL; SEAT STAINLESS STEEL; DIAPHRAGM STAINLESS STEEL; THREE PORTS 3/4 IN. NPT INTERNAL THREADED; MAINTAINS INLET PRESSURE BY DISCHARGING INTO RELIEF LINE OR BY-PASS; TWO IN-LINE INLET CONNECTIONS SO VALVE CAN BE INSTALLED IN PUMP DISCHARGE LINE OR,BY CLOSING ONE INLET PORT,CAN BE USED AS ANGLE RELIEF VALVE; 0 TO 10 PSI SPRING IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 9496M32P01 | 5/1 Secondary reference General Electric Company |
| 123-3+11 3/4IN | 3/1 Design control — primary reference U.S. Government activity |
NSN 4820-01-230-9461 is a Valve,regulating,back Pressure, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-230-9461: General Characteristics Item Description: BODY STAINLESS STEEL; TRIM STAINLESS STEEL; SEAT STAINLESS STEEL; DIAPHRAGM STAINLESS STEEL; THREE PORTS 3/4 IN. NPT INTERNAL THREADED; MAINTAINS INLET PRESSURE BY DISCHARGING INTO RELIEF LINE OR BY-PASS; TWO IN-LINE INLET CONNECTIONS SO VALVE CAN BE INSTALLED IN PUMP DISCHARGE LINE OR,BY CLOSING ONE INLET PORT,CAN BE USED AS ANGLE RELIEF VALVE; 0 TO 10 PSI SPRING IN. 1 specification is 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.
NSN 4820-01-230-9461 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.