The Valve,safety Relief, cataloged under National Stock Number 4820-01-423-7596, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dover Corp Groen Div. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-423-7596 |
| Primary Part Number | 005587 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Dover Corp Groen Div |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 HANDLE |
| Style Designator | ANGLE |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.250 INCHES ALL ENDS IN |
| Disk Loading Method | SPRING |
| Thread Series Designator | NPT ALL ENDS |
| Opening Pressure Setting | 50.0 POUNDS PER SQUARE INCH LBS |
| Valve Operation Method | AUTOMATIC OR MANUAL |
| 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 |
|---|---|
| 005587 PRIMARY | Dover Corp Groen Div (USA) |
| Reference | Meaning |
|---|---|
| DEE/4-20 12KV 3PH 480V ITEM 2 | 5/9 Secondary reference Dover Corp Groen Div |
NSN 4820-01-423-7596 is a Valve,safety Relief, manufactured by Dover Corp Groen Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-423-7596 has 1 manufacturer part number on file: 005587 (Dover Corp Groen Div).
Key specifications for 005587: Furnished Items and Quantity: 1 HANDLE; Style Designator: ANGLE; Thread Direction: RIGHT-HAND ALL ENDS; Nominal Thread Size: 0.250 INCHES ALL ENDS IN. 8 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.