The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-089-2028, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Emerson Electric Co Alco Controls Div. Government technical data includes 18 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-089-2028 |
| Primary Part Number | HP14S9A |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Emerson Electric Co Alco Controls Div |
| Status | ACTIVE |
| Flow Control Device | BALL, PORTED |
| Second End Relationship with First End | IDENTICAL |
| Body Style | TEE |
| Regulation Type | AUTOMATIC DOUBLE STAGE |
| Third End Relationship with Preceding Ends | IDENTICAL WITH SECOND END |
| First End Style Designator | PLAIN |
| Third Connection Face to Centerline Distance | 4.750 INCHES NOMINAL IN |
| Temp Rating | 100.0 FAHRENHEIT MAXIMUM DEGF |
| First Connection Face to Centerline Distance | 5.438 INCHES NOMINAL IN |
| End Connection Quantity | 3 |
| Valve Loading Method | SPRING |
| Second Connection Face to Centerline Distance | 4.750 INCHES NOMINAL IN |
| First End Connection Type | UNTHREADED INTERNAL TUBE |
| First End Outside Diameter Tube Accommodated | 1.125 INCHES NOMINAL IN |
| Material | COPPER ALLOY BODY |
| Media for Which Designed | WATER, OIL OR GAS |
| Center to Center Distance | 6.562 INCHES NOMINAL IN |
| Filter | NOT INCLUDED |
| 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 |
|---|---|
| HP14S9A PRIMARY | Emerson Electric Co Alco Controls Div (USA) |
NSN 4820-01-089-2028 is a Valve,regulating,fluid Pressure, manufactured by Emerson Electric Co Alco Controls Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-089-2028 has 1 manufacturer part number on file: HP14S9A (Emerson Electric Co Alco Controls Div).
Key specifications for HP14S9A: Flow Control Device: BALL, PORTED; Second End Relationship with First End: IDENTICAL; Body Style: TEE; Regulation Type: AUTOMATIC DOUBLE STAGE. 18 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.