The Valve,safety Relief, cataloged under National Stock Number 4820-01-219-1197, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dante Valve Company. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-219-1197 |
| Primary Part Number | D42UU-05H-1/2-3/4 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Dante Valve Company |
| Status | ACTIVE |
| Operating Pressure | 95.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| 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 |
|---|---|
| D42UU-05H-1/2-3/4 PRIMARY | Dante Valve Company (USA) |
| Reference | Meaning |
|---|---|
| D42UU-05H-1/2-3/4 | 3/9 Design control — primary reference Danco Valve Company |
| 87CS165 | 5/9 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| D42UU-06 1/2 IN | 5/9 Secondary reference Danco Valve Company |
| D42UU-05 1/2 X 3/4 | 5/9 Secondary reference Danco Valve Company |
NSN 4820-01-219-1197 is a Valve,safety Relief, manufactured by Dante Valve Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-219-1197 has 1 manufacturer part number on file: D42UU-05H-1/2-3/4 (Dante Valve Company).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-326-0797. Verify interchangeability with system specifications before substitution.
Key specifications for D42UU-05H-1/2-3/4: Operating Pressure: 95.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Special Features: VALVE SZ 0.500 IN. BY 0.750 IN. IN; End Item Identification: LOS ANGELES CLASS SSN(688). 1 specification is 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.