The Valve,safety Relief, cataloged under National Stock Number 4820-01-506-7748, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Aerius Marine Gmbh. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-506-7748 |
| Primary Part Number | 71.438.000.240 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Aerius Marine Gmbh |
| Status | ACTIVE |
| Connection Type | THREADED EXTERNAL PIPE ALL ENDS |
| Style Designator | ANGLE |
| Maximum Operating Temp | 107.0 CELSIUS SINGLE RESPONSE DEGC |
| Material | COPPER ALLOY BODY |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| 71.438.000.240 | Aerius Marine Gmbh (DEU) |
| 71438.000240 | Aerius Marine Gmbh (DEU) |
| Reference | Meaning |
|---|---|
| 527E- 240 | 3/9 Design control — primary reference Henry Technologies, Inc. |
NSN 4820-01-506-7748 is a Valve,safety Relief, manufactured by Aerius Marine Gmbh, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-506-7748 has 2 manufacturer part numbers on file: 71.438.000.240 (Aerius Marine Gmbh), 71438.000240 (Aerius Marine Gmbh).
Key specifications for 71.438.000.240: Connection Type: THREADED EXTERNAL PIPE ALL ENDS; Style Designator: ANGLE; Maximum Operating Temp: 107.0 CELSIUS SINGLE RESPONSE DEGC; Part Name Assigned by Controlling Agency: PRESSURE RELIEF VALVE. 5 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.