The Valve,expansion, cataloged under National Stock Number 4820-01-138-2214, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-138-2214 |
| Item Name | Valve,expansion |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flow Control Device | ANY ACCEPTABLE |
| Second End Relationship with First End | IDENTICAL |
| Third End Relationship with Preceding Ends | NOT IDENTICAL WITH FIRST OR SECOND END |
| First End Style Designator | CRIMPED |
| End Connection Quantity | 3 |
| First End Connection Type | UNTHREADED INTERNAL TUBE |
| Third End Connection Type | UNTHREADED INTERNAL TUBE |
| Media for Which Designed | FREON USE REFRIGERANT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 13221E9105 | 5/2 Secondary reference U.S. Government activity |
| 13221E9105 | 3/2 Design control — primary reference U.S. Government activity |
| 13221E9105 | 5/9 Secondary reference Drs Environmental Systems Inc |
| 13221E9105 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-138-2214 is a Valve,expansion, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-138-2214: Flow Control Device: ANY ACCEPTABLE; Second End Relationship with First End: IDENTICAL; Third End Relationship with Preceding Ends: NOT IDENTICAL WITH FIRST OR SECOND END; First End Style Designator: CRIMPED. 8 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.