The Diaphragm,actuator Valve,special, cataloged under National Stock Number 4820-01-466-8025, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Evac North America Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-466-8025 |
| Primary Part Number | 5435169 |
| Item Name | Diaphragm,actuator Valve,special |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Evac North America Inc |
| Status | ACTIVE |
| Pressure Rating | 30.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Media for Which Designed | WATER |
| Material | RUBBER |
| 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 |
|---|---|
| 5435169 PRIMARY | Evac North America Inc (USA) |
| Reference | Meaning |
|---|---|
| 5435169 | 5/9 Secondary reference Envirovac Inc Dba Monogram Systems-Rockford Div |
NSN 4820-01-466-8025 is a Diaphragm,actuator Valve,special, manufactured by Evac North America Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-466-8025 has 1 manufacturer part number on file: 5435169 (Evac North America Inc).
Key specifications for 5435169: Pressure Rating: 30.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Special Features: MANUFACTURERS SUGGESTED NAME IS RUBBER DIAPHRAGM; NORMALLY IN THE CLOSED POSITION WHEN NOT IN USE; Media for Which Designed: WATER; End Item Identification: PART OF THE TOLIET FLUSHING SYSTEM; NHA IS A PNEUMATIC VALVE SYSTEM WHICH USES 1 QT OF WATER FOR THE TOLIET FLUSH. 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.