The Valve,regulating,temperature, cataloged under National Stock Number 4820-01-415-2619, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Rolls-Royce Corporation. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-415-2619 |
| Primary Part Number | 23054952 |
| Item Name | Valve,regulating,temperature |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Rolls-Royce Corporation |
| Status | ACTIVE |
| First End Bolt Hole Quantity | 4 |
| Flow Control Device | POPPET |
| Second End Relationship with First End | IDENTICAL |
| Body Style | TEE |
| First End Flange Thickness | 0.562 INCHES NOMINAL IN |
| First End Flange Outside Diameter | 5.000 INCHES NOMINAL IN |
| Third End Relationship with Preceding Ends | IDENTICAL WITH FIRST END |
| First End Style Designator | RAISED |
| Temp Rating | 250.0 FAHRENHEIT NOMINAL DEGF |
| First End Bolt Hole Diameter | 0.625 INCHES NOMINAL IN |
| First End Raised Face Diameter | 2.562 INCHES NOMINAL IN |
| First End Bolt Circle Diameter | 3.875 INCHES NOMINAL IN |
| End Connection Quantity | 3 |
| First End Connection Type | RAISED FACE FLANGE |
| Temp Adjustability | NOT ADJUSTABLE |
| First End Flange Shape Style | ROUND W/ BOLT HOLES |
| Thermostatic Element | INTEGRAL W/VALVE |
| First End Raised Face Height | 0.062 INCHES NOMINAL IN |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 23054952 | Rolls-Royce Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1.5EMSJ110-07 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 1-1/2IN EMSJ110-07 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-415-2619 is a Valve,regulating,temperature, manufactured by Rolls-Royce Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-415-2619 has 1 manufacturer part number on file: 23054952 (Rolls-Royce Corporation).
Key specifications for 23054952: First End Bolt Hole Quantity: 4; Flow Control Device: POPPET; Second End Relationship with First End: IDENTICAL; Body Style: TEE. 19 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.