The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-378-2294, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. Government technical data includes 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-378-2294 |
| Primary Part Number | SW131A01R0470 CDS-SW1026 |
| Item Name | Valve,relief,pressure and Temper |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| Status | ACTIVE |
| End Connection Quantity | 2 |
| First End Connection Type | BUTT WELD PIPE |
| First End Nominal Pipe Size Accommodated | 2.500 INCHES IN |
| 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 |
|---|---|
| SW131A01R0470 CDS-SW1026 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| Reference | Meaning |
|---|---|
| SW131A01R0470 CDS-SW1026 | 5/9 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| SW131 | 5/1 Secondary reference Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| SW131 | 5/9 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
NSN 4820-01-378-2294 is a Valve,relief,pressure and Temper, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-378-2294 has 1 manufacturer part number on file: SW131A01R0470 CDS-SW1026 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
3 possible matches (shared part number, not a government interchangeability claim): 4820-01-378-3834, 4820-01-383-5238, 4820-01-500-9853. Verify interchangeability with system specifications before substitution.
Key specifications for SW131A01R0470 CDS-SW1026: End Connection Quantity: 2; First End Connection Type: BUTT WELD PIPE; Special Features: SPRING RANGE 400 PSI TO 535 PSI; End Item Identification: SEAWOLF CLASS SSN. 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.