The Valve,expansion, cataloged under National Stock Number 4820-01-217-1111, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-217-1111 |
| Primary Part Number | 049786 |
| Item Name | Valve,expansion |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Emerson Electric Co Alco Controls Div |
| Status | ACTIVE |
| Flow Control Device | CAGE |
| Valve Equalizer Location | EXTERNAL |
| Temp Rating | 300.0 FAHRENHEIT DEGF |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU |
| First End Style Designator | SOCKET |
| Valve Equalizer Connection Diameter | 0.250 INCHES NOMINAL IN |
| Refrigeration Capacity in Btu Per Hour | 6.0 |
| End Connection Quantity | 1 |
| First End Connection Type | UNTHREADED INTERNAL TUBE |
| Valve Evaporator Temp Range Designation | HIGH |
| First End Outside Diameter Tube Accommodated | 3.937 INCHES NOMINAL IN |
| Material | COPPER ALLOY BODY |
| Valve Expansion Control Type | THERMOSTATIC |
| Valve Equalizer Connection Type | FLARED 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 |
|---|---|
| 049786 PRIMARY | Emerson Electric Co Alco Controls Div (USA) |
| TCL1/2FW3/8X5/82B | Emerson Electric Co Alco Controls Div (USA) |
| Reference | Meaning |
|---|---|
| TCLE1/2FW55N0P2 | 5/9 Secondary reference Emerson Electric Co Alco Controls Div |
| 025-13302 | 5/9 Secondary reference Johnson Controls Navy Systems, Llc |
NSN 4820-01-217-1111 is a Valve,expansion, manufactured by Emerson Electric Co Alco Controls Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-217-1111 has 2 manufacturer part numbers on file: 049786 (Emerson Electric Co Alco Controls Div), TCL1/2FW3/8X5/82B (Emerson Electric Co Alco Controls Div).
Key specifications for 049786: Flow Control Device: CAGE; Valve Equalizer Location: EXTERNAL; Temp Rating: 300.0 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.