The Valve,check, cataloged under National Stock Number 4820-01-203-6849, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-203-6849 |
| Primary Part Number | 366652 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Eaton Aerospace, Llc Dba Jackson South |
| Status | ACTIVE |
| Flow Control Device | PISTONPISTON |
| Connection Style | GROOVED (TUBE) FIRST END |
| Connection Type | UNTHREADED EXTERNAL TUBE FIRST END |
| Style Designator | STRAIGHT THRU |
| Disk Loading Method | SPRINGSPRING |
| Mounting Facility | BULKHEAD |
| Valve Operation Method | AUTOMATIC OR MANUAL |
| 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 |
|---|---|
| 366652 PRIMARY | Eaton Aerospace, Llc Dba Jackson South (USA) |
| Reference | Meaning |
|---|---|
| 4820PL1290406 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 4820-01-203-6849 is a Valve,check, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-203-6849 has 1 manufacturer part number on file: 366652 (Eaton Aerospace, Llc Dba Jackson South).
Key specifications for 366652: Flow Control Device: PISTONPISTON; Connection Style: GROOVED (TUBE) FIRST END; Connection Type: UNTHREADED EXTERNAL TUBE FIRST END; Style Designator: STRAIGHT THRU. 7 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.