The Valve,safety Relief, cataloged under National Stock Number 4820-01-140-8024, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Anderson Greenwood Lp Dba Anderson Greenwood Crosby. Government technical data includes 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-140-8024 |
| Primary Part Number | 20251 9 926 SS |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| 20251 9 926 SS PRIMARY | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| D48DUU-01H-3/4-1 PRIMARY | Dante Valve Company (USA) |
| Reference | Meaning |
|---|---|
| D48DUU-01 3/4 X 1 IN | 5/9 Secondary reference Danco Valve Company |
| D48DUU-01 | 5/9 Secondary reference Danco Valve Company |
| D48DUU-01 | 5/9 Secondary reference Dante Valve Company |
NSN 4820-01-140-8024 is a Valve,safety Relief, manufactured by Anderson Greenwood Lp Dba Anderson Greenwood Crosby, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-140-8024 has 2 manufacturer part numbers on file: 20251 9 926 SS (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), D48DUU-01H-3/4-1 (Dante Valve Company).
Key specifications for 20251 9 926 SS: Flow Control Device: DISK; End Item Identification: FORRESTAL CLASS CV; Material: STEEL CORROSION RESISTING BODY; Valve Operation Method: AUTOMATIC. 3 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.