The Valve,check, cataloged under National Stock Number 4820-01-434-5329, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Lifestream Watersystems, Inc. Dba Lifestream Watersystems 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-434-5329 |
| Primary Part Number | PV-050308 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Lifestream Watersystems, Inc. Dba Lifestream Watersystems Inc |
| Status | ACTIVE |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| PV-050308 PRIMARY | Lifestream Watersystems, Inc. Dba Lifestream Watersystems Inc (USA) |
| Reference | Meaning |
|---|---|
| T63MANF | D/9 Drawing number reference only Lifestream Watersystems, Inc. Dba Lifestream Watersystems Inc |
NSN 4820-01-434-5329 is a Valve,check, manufactured by Lifestream Watersystems, Inc. Dba Lifestream Watersystems Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-434-5329 has 1 manufacturer part number on file: PV-050308 (Lifestream Watersystems, Inc. Dba Lifestream Watersystems Inc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-434-5472. Verify interchangeability with system specifications before substitution.
Key specifications for PV-050308: Mounting Position: HORIZONTAL OR VERTICAL; End Item Identification: DISTILLING UNIT; Material: STEEL CORROSION RESISTING BODY; Valve Operation Method: AUTOMATIC. 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.