The Valve,safety Relief, cataloged under National Stock Number 4820-01-017-4457, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dressta North America Ltd. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-017-4457 |
| Primary Part Number | 104096H45 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Dressta North America Ltd |
| Status | ACTIVE |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Material | STEEL FLOW CONTROL DEVICE |
| Material | ALUMINUM 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 |
|---|---|
| 104096H45 PRIMARY | Dressta North America Ltd (USA) |
| 1GCXP1433-005 PRIMARY | Danfoss Fluid Power Inc Easley Opn (USA) |
| H206493-001 | Wartsila Water Systems Limited (GBR) |
| Reference | Meaning |
|---|---|
| D-104096 | 5/9 Secondary reference Komatsu America Corporation |
| 104096 | 5/9 Secondary reference Komatsu America Corporation |
| 104096H45 | 5/9 Secondary reference Komatsu America Corporation |
| 104096 | 5/9 Secondary reference Young & Cunningham (glasgow) Ltd |
NSN 4820-01-017-4457 is a Valve,safety Relief, manufactured by Dressta North America Ltd, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-017-4457 has 3 manufacturer part numbers on file: 104096H45 (Dressta North America Ltd), 1GCXP1433-005 (Danfoss Fluid Power Inc Easley Opn), H206493-001 (Wartsila Water Systems Limited).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-661-7267. Verify interchangeability with system specifications before substitution.
Key specifications for 104096H45: Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Special Features: THREE PORTS; Material: STEEL FLOW CONTROL DEVICE; Material: ALUMINUM BODY. 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.