The Valve,safety Relief, cataloged under National Stock Number 4820-01-351-4004, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Palfinger Marine Usa, Llc. Government technical data includes 10 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-351-4004 |
| Primary Part Number | 45-0011-001 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Palfinger Marine Usa, Llc |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Connection Style | PLAIN,OPTIONAL END(PIPE) ALL ENDS |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 2.000 INCHES ALL ENDS IN |
| Disk Loading Method | SPRING |
| Material | STEEL CORROSION RESISTING BODY |
| Thread Series Designator | BSP.F ALL ENDS |
| 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 |
|---|---|
| 45-0011-001 PRIMARY | Palfinger Marine Usa, Llc (USA) |
| Reference | Meaning |
|---|---|
| 45-0005-001 | 5/9 Secondary reference Watercraft America Inc |
| 45-005-0001 | C/1 Advisory reference — outside the item-of-supply concept Palfinger Marine Usa, Llc |
| 45-0005-0001 | C/1 Advisory reference — outside the item-of-supply concept Palfinger Marine Usa, Llc |
| 45-0005-001 | C/1 Advisory reference — outside the item-of-supply concept Palfinger Marine Usa, Llc |
NSN 4820-01-351-4004 is a Valve,safety Relief, manufactured by Palfinger Marine Usa, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-351-4004 has 1 manufacturer part number on file: 45-0011-001 (Palfinger Marine Usa, Llc).
Key specifications for 45-0011-001: Flow Control Device: DISK; Connection Style: PLAIN,OPTIONAL END(PIPE) ALL ENDS; Connection Type: THREADED INTERNAL PIPE ALL ENDS; Style Designator: STRAIGHT THRU. 10 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.