The Valve,safety Relief, cataloged under National Stock Number 4820-01-591-0021, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Emerson Automation Solutions Final Control Us Lp Dba Marine Product Team Div Marine Product Team. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-591-0021 |
| Primary Part Number | 200H-F01-MG0022 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Emerson Automation Solutions Final Control Us Lp Dba Marine Product Team Div Marine Product Team |
| Status | ACTIVE |
| 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 |
|---|---|
| 200H-F01-MG0022 PRIMARY | Emerson Automation Solutions Final Control Us Lp Dba Marine Product Team Div Marine Product Team (USA) |
| Reference | Meaning |
|---|---|
| 200H-F01-MG0022 | 5/9 Secondary reference Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
NSN 4820-01-591-0021 is a Valve,safety Relief, manufactured by Emerson Automation Solutions Final Control Us Lp Dba Marine Product Team Div Marine Product Team, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-591-0021 has 1 manufacturer part number on file: 200H-F01-MG0022 (Emerson Automation Solutions Final Control Us Lp Dba Marine Product Team Div Marine Product Team).
Key specifications for 200H-F01-MG0022: Special Features: 1-1/4 INCH UL LISTED LIQUID RELIEF VALVE 1-1/4 INCH MNPT X F ORFICE X 1-1/4 INCH FNPT CONNECTIONS ORIGINAL DESIGN REVISION NON-CODE LIQUID SERVICE 316 STAINLESS STEEL SPRING; PRESSURE RANGE 10 TO 200 PSIG; TEMPERATURE RANGE -60 DEG F TO 406 DEG F; MATERIAL BRASS/BRONZE; SET PRESSURE 22 PSIG IN; End Item Identification: PUMP UNIT,CENTRIFUGAL, 4320-01-468-7959. 0 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.