The Valve,expansion, cataloged under National Stock Number 4820-01-211-9447, 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 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-211-9447 |
| Primary Part Number | HP-14T9-A |
| Item Name | Valve,expansion |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Emerson Electric Co Alco Controls Div |
| Status | ACTIVE |
| Second End Relationship with First End | IDENTICAL |
| Third End Relationship with Preceding Ends | IDENTICAL WITH FIRST END |
| First End Style Designator | PLAIN |
| End Connection Quantity | 3 |
| First End Connection Type | UNTHREADED INTERNAL TUBE |
| First End Outside Diameter Tube Accommodated | 1.125 INCHES NOMINAL IN |
| Material | NICKEL ALLOY BODY |
| Valve Expansion Control Type | PRESSURE |
| Media for Which Designed | REFRIGERANT 12 |
| Valve Pressure Limiting Device | 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 |
|---|---|
| HP-14T9-A PRIMARY | Emerson Electric Co Alco Controls Div (USA) |
| Reference | Meaning |
|---|---|
| 500K0234 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-211-9447 is a Valve,expansion, manufactured by Emerson Electric Co Alco Controls Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-211-9447 has 1 manufacturer part number on file: HP-14T9-A (Emerson Electric Co Alco Controls Div).
Key specifications for HP-14T9-A: Second End Relationship with First End: IDENTICAL; Third End Relationship with Preceding Ends: IDENTICAL WITH FIRST END; First End Style Designator: PLAIN; End Connection Quantity: 3. 10 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.