The Valve,safety Relief, cataloged under National Stock Number 4820-01-723-9345, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Swagelok Co. Government technical data includes 15 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-723-9345 |
| Primary Part Number | PRVB2F-02-0-VV |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Swagelok Co |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Nominal Pipe Size Accommodated | 0.25 INCHES ALL ENDS IN |
| Nominal Length | 156.0 MILLIMETERS ALL ENDS MM |
| Minimum Operating Temp | -15.0 CELSIUS DEGC |
| Connection Type | THREADED INTERNAL PIPE FIRST END |
| Operating Pressure | 413.0 BAR MAXIMUM SINGLE RESPONSE |
| Adjustable Pressure Range | +10.0 TO 365.0 BAR |
| Bonnet Type | INSIDE SPRING |
| Nominal Thread Size | 0.25 INCHES FIRST END IN |
| Maximum Operating Temp | 80.0 CELSIUS SINGLE RESPONSE DEGC |
| Nominal Outside Diameter | 52.0 MILLIMETERS ALL ENDS MM |
| Bonnet Attachment Method | PRESSURE SEAL, RING TYPE |
| Media for Which Designed | LIQUID FIRST RESPONSE |
| Material | STEEL COMP 316L OVERALL |
| Thread Series Designator | BSP.PL FIRST END |
| 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 |
|---|---|
| PRVB2F-02-0-VV PRIMARY | Swagelok Co (USA) |
NSN 4820-01-723-9345 is a Valve,safety Relief, manufactured by Swagelok Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-723-9345 has 1 manufacturer part number on file: PRVB2F-02-0-VV (Swagelok Co).
Key specifications for PRVB2F-02-0-VV: Flow Control Device: POPPET; Nominal Pipe Size Accommodated: 0.25 INCHES ALL ENDS IN; Nominal Length: 156.0 MILLIMETERS ALL ENDS MM; Minimum Operating Temp: -15.0 CELSIUS DEGC. 15 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.