The Valve,expansion, cataloged under National Stock Number 4820-01-126-3746, 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 24 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-126-3746 |
| Primary Part Number | F23007 PART P020F1 |
| Item Name | Valve,expansion |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Emerson Electric Co Alco Controls Div |
| Status | ACTIVE |
| First End Bolt Hole Quantity | 2 |
| Flow Control Device | DISK, FLAT |
| Valve Equalizer Location | EXTERNAL |
| Second End Relationship with First End | IDENTICAL |
| First End Recess Diameter | 1.250 INCHES NOMINAL IN |
| Body Style | STRAIGHT THRU |
| Face to Face Distance | 3.250 INCHES NOMINAL IN |
| First End Style Designator | RECESSED |
| First End Flange Width | 2.000 INCHES NOMINAL IN |
| Valve Equalizer Connection Diameter | 0.500 INCHES NOMINAL IN |
| First End Recess Depth | 0.125 INCHES NOMINAL IN |
| Refrigeration Capacity in Btu Per Hour | 240.0 |
| First End Bolt Hole Diameter | 0.500 INCHES NOMINAL IN |
| First End Bolt Circle Diameter | 2.000 INCHES NOMINAL IN |
| End Connection Quantity | 2 |
| First End Connection Type | RECESSED FLANGE |
| First End Flange Shape Style | OVAL W/ BOLT HOLES |
| First End Flange End Radius | 0.500 INCHES NOMINAL IN |
| Material | IRON CAST BODY |
| Valve Expansion Control Type | PRESSURE |
| First End Flange Length | 3.812 INCHES NOMINAL IN |
| Media for Which Designed | REFRIGERANT 12 |
| Valve Equalizer Connection Type | SOLDER TUBE |
| 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 |
|---|---|
| F23007 PART P020F1 PRIMARY | Emerson Electric Co Alco Controls Div (USA) |
| P020F1 | Emerson Electric Co Alco Controls Div (USA) |
| Reference | Meaning |
|---|---|
| F23007 | D/9 Drawing number reference only Emerson Electric Co Alco Controls Div |
NSN 4820-01-126-3746 is a Valve,expansion, manufactured by Emerson Electric Co Alco Controls Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-126-3746 has 2 manufacturer part numbers on file: F23007 PART P020F1 (Emerson Electric Co Alco Controls Div), P020F1 (Emerson Electric Co Alco Controls Div).
Key specifications for F23007 PART P020F1: First End Bolt Hole Quantity: 2; Flow Control Device: DISK, FLAT; Valve Equalizer Location: EXTERNAL; Second End Relationship with First End: IDENTICAL. 24 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.