The Regulator,temperature and Pressu, cataloged under National Stock Number 4820-01-649-8083, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dwyer Instruments (aust) Pty Ltd. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-649-8083 |
| Primary Part Number | MPR1-0 |
| Item Name | Regulator,temperature and Pressu |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Dwyer Instruments (aust) Pty Ltd |
| Status | ACTIVE |
| Spring Operated Pressure Relief | NOT PROVIDED |
| Closing Pressure Setting | 250.0 POUNDS PER SQUARE INCH MAXIMUM LBS |
| Operating Temp Rating | 18.0 CELSIUS MINIMUM AND 60.0 CELSIUS MAXIMUM DEGC |
| Usage Design | COMPACT UNITS THAT PROVIDE LOW COST, HIGH PERFORMANCE PRESSURE REGULATION OF COMPRESSED AIR OR AIR/WATER. |
| 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 |
|---|---|
| MPR1-0 | Dwyer Instruments (aust) Pty Ltd (AUS) |
| Reference | Meaning |
|---|---|
| MPR1-0 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-649-8083 is a Regulator,temperature and Pressu, manufactured by Dwyer Instruments (aust) Pty Ltd, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-649-8083 has 1 manufacturer part number on file: MPR1-0 (Dwyer Instruments (aust) Pty Ltd).
Key specifications for MPR1-0: Overall Height: 71.88 INCHES NOMINAL IN; Spring Operated Pressure Relief: NOT PROVIDED; Closing Pressure Setting: 250.0 POUNDS PER SQUARE INCH MAXIMUM LBS; Operating Temp Rating: 18.0 CELSIUS MINIMUM AND 60.0 CELSIUS MAXIMUM DEGC. 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.