The Valve,expansion, cataloged under National Stock Number 4820-01-038-8231, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-038-8231 |
| Item Name | Valve,expansion |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Second End Relationship with First End | NOT IDENTICAL |
| Body Style | ANGLE GIVE "ADQM" OR "ADQN" IF FLANGED ONE OR TWO ENDS |
| First End Style Designator | SOCKET |
| End Connection Quantity | 2 |
| Second End Style Designator | SOCKET |
| First End Connection Type | UNTHREADED INTERNAL TUBE |
| Material | COPPER ALLOY BODY |
| Media for Which Designed | OIL |
| Media for Which Designed | REFRIGERANT 22 |
| Second End Connection Type | UNTHREADED INTERNAL TUBE |
| 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 |
|---|---|
| TCL25CL-15A | 5/9 Secondary reference Emerson Electric Co Alco Controls Div |
| 13214E3785-2 | 5/2 Secondary reference U.S. Government activity |
| 3214E3785-2 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 13214E3785 | 3/2 Design control — primary reference U.S. Government activity |
| TCL GT-2537 1/4 CL | 5/9 Secondary reference Emerson Electric Co Alco Controls Div |
NSN 4820-01-038-8231 is a Valve,expansion, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-038-8231: Second End Relationship with First End: NOT IDENTICAL; Body Style: ANGLE GIVE "ADQM" OR "ADQN" IF FLANGED ONE OR TWO ENDS; First End Style Designator: SOCKET; End Connection Quantity: 2. 10 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.