The Valve,safety Relief, cataloged under National Stock Number 4820-01-682-3384, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Scott Industrial Systems, Inc. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-682-3384 |
| Primary Part Number | VRVD-6SAESS-V-1 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Scott Industrial Systems, Inc |
| Status | ACTIVE |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Style Designator | STRAIGHT THRU W/BAFFLE |
| Material Document and Classification | A479 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | A479 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE SEAT |
| Valve Size | 0.250 INCHES IN |
| Thread Direction | RIGHT-HAND SECOND END |
| Nominal Thread Size | 0.250 INCHES SECOND END IN |
| Surface Treatment | PLASTIC POLYTETRAFLUOROETHYLENE O-RING |
| Material | STEEL COMP 316 BODY |
| Material | STEEL COMP 316 SEAT |
| Thread Series Designator | NPT SECOND 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 |
|---|---|
| VRVD-6SAESS-V-1 | Scott Industrial Systems, Inc (USA) |
| Reference | Meaning |
|---|---|
| VRVD-6SAESS-V-1 | 3/9 Design control — primary reference U.S. Government activity |
NSN 4820-01-682-3384 is a Valve,safety Relief, manufactured by Scott Industrial Systems, Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-682-3384 has 1 manufacturer part number on file: VRVD-6SAESS-V-1 (Scott Industrial Systems, Inc).
Key specifications for VRVD-6SAESS-V-1: Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END; Connection Type: THREADED EXTERNAL BOSS SECOND END; Style Designator: STRAIGHT THRU W/BAFFLE; Material Document and Classification: A479 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE BODY. 12 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.