The Valve,expansion, cataloged under National Stock Number 4820-01-337-6122, 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 16 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 | 4820-01-337-6122 |
| Primary Part Number | TERN25FW-2C |
| Item Name | Valve,expansion |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Emerson Electric Co Alco Controls Div |
| Status | ACTIVE |
| Flow Control Device | STEM AND INTEGRAL DISK |
| Valve Equalizer Location | INTERNAL |
| Temp Rating | 50.0 FAHRENHEIT DEGF |
| Second End Relationship with First End | IDENTICAL |
| Body Style | ANGLE GIVE "ADQM" OR "ADQN" IF FLANGED ONE OR TWO ENDS |
| First End Style Designator | SOCKET |
| Refrigeration Capacity in Btu Per Hour | 20.4 |
| First Connection Face to Centerline Distance | 2.000 INCHES NOMINAL IN |
| End Connection Quantity | 2 |
| Second Connection Face to Centerline Distance | 2.312 INCHES NOMINAL IN |
| First End Connection Type | UNTHREADED INTERNAL PIPE |
| Valve Evaporator Temp Range Designation | LOW |
| First End Nominal Pipe Size Accommodated | 0.875 INCHES IN |
| Material | COPPER ALLOY BODY |
| Valve Expansion Control Type | THERMOSTATIC |
| 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 |
|---|---|
| TERN25FW-2C PRIMARY | Emerson Electric Co Alco Controls Div (USA) |
NSN 4820-01-337-6122 is a Valve,expansion, manufactured by Emerson Electric Co Alco Controls Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-337-6122 has 1 manufacturer part number on file: TERN25FW-2C (Emerson Electric Co Alco Controls Div).
Key specifications for TERN25FW-2C: Flow Control Device: STEM AND INTEGRAL DISK; Valve Equalizer Location: INTERNAL; Temp Rating: 50.0 FAHRENHEIT DEGF; Second End Relationship with First End: IDENTICAL. 16 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.