The Valve,safety Relief, cataloged under National Stock Number 4820-01-424-0856, 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 4 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-424-0856 |
| Primary Part Number | 102297 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Dover Corp Groen Div |
| Status | ACTIVE |
| Style Designator | ANGLE |
| Operating Pressure | 15.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Media for Which Designed | STEAM SINGLE RESPONSE |
| Valve Operation Method | AIR |
| 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 |
|---|---|
| 102297 PRIMARY | Dover Corp Groen Div (USA) |
| NEB/1 48KW BOILER ITEM 4 | Dover Corp Groen Div (USA) |
NSN 4820-01-424-0856 is a Valve,safety Relief, manufactured by Dover Corp Groen Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-424-0856 has 2 manufacturer part numbers on file: 102297 (Dover Corp Groen Div), NEB/1 48KW BOILER ITEM 4 (Dover Corp Groen Div).
Key specifications for 102297: Style Designator: ANGLE; Operating Pressure: 15.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Special Features: STEAM GENERATOR; Media for Which Designed: STEAM SINGLE RESPONSE. 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.