The Stem,fluid Valve, cataloged under National Stock Number 4820-01-183-2469, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corp Div Fleet Solutions. Government technical data includes 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-183-2469 |
| Primary Part Number | 855-026-040 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corp Div Fleet Solutions |
| Status | ACTIVE |
| Valve Type for Which Designed | RELIEF |
| Stem Actuating End Type | THREADED EXTERNALLY |
| Valve Size for Which Designed | 4.000 INCHES IN |
| Material | STEEL COMP 304 |
| 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 |
|---|---|
| 855-026-040 PRIMARY | Curtiss-Wright Electro-Mechanical Corp Div Fleet Solutions (USA) |
| Reference | Meaning |
|---|---|
| 855-026-040 | 5/9 Secondary reference Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots |
| 855-026-040 | 3/9 Design control — primary reference Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand |
NSN 4820-01-183-2469 is a Stem,fluid Valve, manufactured by Curtiss-Wright Electro-Mechanical Corp Div Fleet Solutions, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-183-2469 has 1 manufacturer part number on file: 855-026-040 (Curtiss-Wright Electro-Mechanical Corp Div Fleet Solutions).
Key specifications for 855-026-040: Valve Type for Which Designed: RELIEF; Stem Actuating End Type: THREADED EXTERNALLY; Valve Size for Which Designed: 4.000 INCHES IN; Material: STEEL COMP 304. 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.