The Valve,safety Relief, cataloged under National Stock Number 4820-01-411-7559, 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 Div Navy Product Team. Government technical data includes 5 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-411-7559 |
| Primary Part Number | MH106 1771T 1" 572-700PSI |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Style Designator | ANGLE |
| Adjustable Pressure Range | +535.0 TO 755.0 POUNDS PER SQUARE INCH LBS |
| Material | COPPER ALLOY BODY |
| Material | STEEL CORROSION RESISTING STEM |
| 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 |
|---|---|
| MH106 1771T 1" 572-700PSI PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| Reference | Meaning |
|---|---|
| MH106 REV A | 5/9 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| MH101 | 5/9 Secondary reference Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| MH10601E0700 | 5/9 Secondary reference Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| MH10601E0700VM | 3/9 Design control — primary reference Naval Inventory Control Point Mechanicsburg |
| MH106 REV A | 5/9 Secondary reference Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| MH10601E0700 | 5/9 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| MH101 | 5/9 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
NSN 4820-01-411-7559 is a Valve,safety Relief, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-411-7559 has 1 manufacturer part number on file: MH106 1771T 1" 572-700PSI (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
3 possible matches (shared part number, not a government interchangeability claim): 4820-01-502-6561, 4820-01-502-6582, 4820-01-502-6869. Verify interchangeability with system specifications before substitution.
Key specifications for MH106 1771T 1" 572-700PSI: Flow Control Device: DISK; Style Designator: ANGLE; Adjustable Pressure Range: +535.0 TO 755.0 POUNDS PER SQUARE INCH LBS; Special Features: VALVE SZ 1.000 IN. IN. 5 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.