The Valve,expansion, cataloged under National Stock Number 4820-01-445-3140, 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 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-445-3140 |
| Primary Part Number | HFESC 2HC |
| Item Name | Valve,expansion |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Emerson Electric Co Alco Controls Div |
| Status | ACTIVE |
| Valve Equalizer Location | EXTERNAL |
| Body Style | ANGLE GIVE "ADQM" OR "ADQN" IF FLANGED ONE OR TWO ENDS |
| Capillary Tube Length | 60.000 INCHES NOMINAL IN |
| Material | COPPER BODY |
| Valve Expansion Control Type | THERMOSTATIC |
| 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 |
|---|---|
| HFESC 2HC | Adrick Marine Group, Inc (USA) |
| HFESC 2HC PRIMARY | Emerson Electric Co Alco Controls Div (USA) |
| 1508-1 REV B ITEM 30 PRIMARY | Adrick Marine Group, Inc (USA) |
| Reference | Meaning |
|---|---|
| HFESC 2HC | C/1 Advisory reference — outside the item-of-supply concept Alco Air Conditioning |
NSN 4820-01-445-3140 is a Valve,expansion, manufactured by Emerson Electric Co Alco Controls Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-445-3140 has 3 manufacturer part numbers on file: HFESC 2HC (Adrick Marine Group, Inc), HFESC 2HC (Emerson Electric Co Alco Controls Div), 1508-1 REV B ITEM 30 (Adrick Marine Group, Inc).
Key specifications for HFESC 2HC: Valve Equalizer Location: EXTERNAL; Body Style: ANGLE GIVE "ADQM" OR "ADQN" IF FLANGED ONE OR TWO ENDS; Capillary Tube Length: 60.000 INCHES NOMINAL IN; Special Features: REMOVABLE STRAINER. 5 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.