The Valve,check, cataloged under National Stock Number 4820-01-561-1618, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Yanmar America Corporation. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-561-1618 |
| Primary Part Number | 119593-59920 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Yanmar America Corporation |
| Status | ACTIVE |
| Style Designator | STRAIGHT THRU |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| 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 |
|---|---|
| 119593-59920 PRIMARY | Yanmar America Corporation (USA) |
| Reference | Meaning |
|---|---|
| 119593-59920 | 3/9 Design control — primary reference Yanmar Diesel America Corp |
NSN 4820-01-561-1618 is a Valve,check, manufactured by Yanmar America Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-561-1618 has 1 manufacturer part number on file: 119593-59920 (Yanmar America Corporation).
Key specifications for 119593-59920: Style Designator: STRAIGHT THRU; Special Features: MFGR CALLS THIS VALVE A CHECK VALVE ASSEMBLY; NEXT HIGHER ASSEMBLY: FUEL PIPE AND FUEL STRAINER; Media for Which Designed: FUEL/OIL, HYDROCARBON SINGLE RESPONSE; End Item Identification: STRAIGHT 6 CYL INBOARD DIESEL ENGINE 6LY2A-STP. 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.