The Valve,expansion, cataloged under National Stock Number 4820-01-523-3307, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil. Government technical data includes 1 specification, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-523-3307 |
| Primary Part Number | 18-040-062 |
| Item Name | Valve,expansion |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil |
| Status | ACTIVE |
| Body Style | STRAIGHT THRU GIVE "ADQL" ONLY WHEN FLANGED BOTH ENDS |
| 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 |
|---|---|
| 1303-03-C FND 13 | Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil (USA) |
| 18-040-062 PRIMARY | Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil (USA) |
NSN 4820-01-523-3307 is a Valve,expansion, manufactured by Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-523-3307 has 2 manufacturer part numbers on file: 1303-03-C FND 13 (Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil), 18-040-062 (Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil).
Key specifications for 18-040-062: Body Style: STRAIGHT THRU GIVE "ADQL" ONLY WHEN FLANGED BOTH ENDS; Special Features: VALVE THERMOSTATIC EXPANSION ( SUBCOOLER) 0.375 INCH X 0.250 INCH ODF IN; End Item Identification: REFG.. 1 specification is 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.