The Valve,expansion, cataloged under National Stock Number 4820-01-422-5523, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is General Dynamics European, Land-Systems-Mowag Gmbh Dba Gdels. Government technical data includes 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-422-5523 |
| Primary Part Number | 0727654 |
| Item Name | Valve,expansion |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | General Dynamics European, Land-Systems-Mowag Gmbh Dba Gdels |
| Status | ACTIVE |
| Body Style | ANGLE GIVE "ADQM" OR "ADQN" IF FLANGED ONE OR TWO ENDS |
| End Connection Quantity | 2 |
| Valve Expansion Control Type | THERMOSTATIC |
| Media for Which Designed | REFRIGERANT |
| 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 |
|---|---|
| 0727654 | General Dynamics European, Land-Systems-Mowag Gmbh Dba Gdels (CHE) |
| 08-00257 | Amz Alabama Inc. (USA) |
| Reference | Meaning |
|---|---|
| 08-00257 | C/1 Advisory reference — outside the item-of-supply concept Bae Systems Land & Armaments L.p. |
| 08-00257 | 3/9 Design control — primary reference Bae Systems Survivability Systems Llc |
NSN 4820-01-422-5523 is a Valve,expansion, manufactured by General Dynamics European, Land-Systems-Mowag Gmbh Dba Gdels, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-422-5523 has 2 manufacturer part numbers on file: 0727654 (General Dynamics European, Land-Systems-Mowag Gmbh Dba Gdels), 08-00257 (Amz Alabama Inc.).
Key specifications for 0727654: Body Style: ANGLE GIVE "ADQM" OR "ADQN" IF FLANGED ONE OR TWO ENDS; End Connection Quantity: 2; End Item Identification: 2320-01-389-7558; Valve Expansion Control Type: THERMOSTATIC. 4 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.