The Valve,expansion, cataloged under National Stock Number 4820-00-911-2249, 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 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-911-2249 |
| Primary Part Number | TL2HW |
| Item Name | Valve,expansion |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Emerson Electric Co Alco Controls Div |
| Status | ACTIVE |
| Flow Control Device | DIAPHRAGM |
| Valve Equalizer Location | EXTERNAL |
| Temp Rating | 50.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF |
| Second End Relationship with First End | NOT IDENTICAL |
| Body Style | ANGLE GIVE "ADQN" IF FLANGED ENDS |
| First End Style Designator | SOCKET |
| End Connection Quantity | 2 |
| Capillary Tube Length | 60.000 INCHES NOMINAL IN |
| Second End Style Designator | PLAIN |
| First End Connection Type | UNTHREADED INTERNAL TUBE |
| Valve Evaporator Temp Range Designation | HIGH |
| First End Outside Diameter Tube Accommodated | 0.375 INCHES NOMINAL IN |
| Material | COPPER ALLOY BODY |
| Valve Expansion Control Type | THERMOSTATIC |
| Media for Which Designed | AIR |
| Valve Pressure Limiting Device | NOT INCLUDED |
| Second End Connection Type | UNTHREADED INTERNAL TUBE |
| Second End Outside Diameter Tube Accommodated | 0.250 INCHES NOMINAL IN |
| 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 |
|---|---|
| D4524-3236-1 | Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters (USA) |
| TL2HW PRIMARY | Emerson Electric Co Alco Controls Div (USA) |
| VAL03013 | Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters (USA) |
| Reference | Meaning |
|---|---|
| TLX200HW100 | 5/9 Secondary reference Emerson Electric Co Alco Controls Div |
| VAL574 | 5/9 Secondary reference Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters |
| TL200HW | 5/9 Secondary reference Emerson Electric Co Alco Controls Div |
| TL200HL | 5/9 Secondary reference Emerson Electric Co Alco Controls Div |
NSN 4820-00-911-2249 is a Valve,expansion, manufactured by Emerson Electric Co Alco Controls Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-911-2249 has 3 manufacturer part numbers on file: D4524-3236-1 (Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters), TL2HW (Emerson Electric Co Alco Controls Div), VAL03013 (Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters).
Key specifications for TL2HW: Flow Control Device: DIAPHRAGM; Valve Equalizer Location: EXTERNAL; Temp Rating: 50.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF; Second End Relationship with First End: NOT IDENTICAL. 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.