The Valve,regulating,temperature, cataloged under National Stock Number 4820-01-331-3572, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-331-3572 |
| Item Name | Valve,regulating,temperature |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| First End Bolt Hole Quantity | 4 |
| Flow Control Device | DISK |
| Second End Relationship with First End | IDENTICAL |
| Body Style | TEE |
| First End Flange Outside Diameter | 3.968 INCHES NOMINAL IN |
| Third End Relationship with Preceding Ends | IDENTICAL WITH SECOND END |
| First End Style Designator | RAISED |
| First End Bolt Hole Diameter | 0.625 INCHES NOMINAL IN |
| First End Bolt Circle Diameter | 3.875 INCHES NOMINAL IN |
| End Connection Quantity | 3 |
| First End Connection Type | RAISED FACE FLANGE |
| First End Flange Shape Style | ROUND W/ BOLT HOLES |
| Material | STEEL BODY |
| 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 |
|---|---|
| 1-1/2 EMSJ130-07 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-331-3572 is a Valve,regulating,temperature, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-331-3572: First End Bolt Hole Quantity: 4; Flow Control Device: DISK; Second End Relationship with First End: IDENTICAL; Body Style: TEE. 13 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.