The Valve,expansion, cataloged under National Stock Number 4820-01-124-8245, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Triumph Thermal Systems - Maryland, Inc.. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-124-8245 |
| Primary Part Number | 77737116-3 |
| Item Name | Valve,expansion |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Triumph Thermal Systems - Maryland, Inc. |
| Status | ACTIVE |
| Temp Rating | 100.0 FAHRENHEIT DEGF |
| Second End Relationship with First End | IDENTICAL |
| Third End Relationship with Preceding Ends | IDENTICAL WITH FIRST END |
| First End Style Designator | SOCKET |
| End Connection Quantity | 3 |
| First End Connection Type | UNTHREADED INTERNAL TUBE |
| First End Outside Diameter Tube Accommodated | 0.500 INCHES NOMINAL IN |
| Media for Which Designed | FREON USE REFRIGERANT |
| 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 |
|---|---|
| GR5039 | Emerson Electric Co Alco Controls Div (USA) |
| 77737116-3 PRIMARY | Triumph Thermal Systems - Maryland, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 77737116 | D/9 Drawing number reference only Triumph Thermal Systems - Maryland, Inc. |
NSN 4820-01-124-8245 is a Valve,expansion, manufactured by Triumph Thermal Systems - Maryland, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-124-8245 has 2 manufacturer part numbers on file: GR5039 (Emerson Electric Co Alco Controls Div), 77737116-3 (Triumph Thermal Systems - Maryland, Inc.).
Key specifications for 77737116-3: Temp Rating: 100.0 FAHRENHEIT DEGF; Second End Relationship with First End: IDENTICAL; Third End Relationship with Preceding Ends: IDENTICAL WITH FIRST END; First End Style Designator: SOCKET. 9 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.