The Valve,check, cataloged under National Stock Number 4820-00-554-9475, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Meggitt Safety Systems, Inc. Dba Meggitt Control Systems-Ventura County. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-00-554-9475 |
| Primary Part Number | F1318 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Meggitt Safety Systems, Inc. Dba Meggitt Control Systems-Ventura County |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Nominal Pipe Size Accommodated | 2.500 INCHES FIRST END IN |
| Connection Style | BEVELED (PIPE) FIRST END |
| Mounting Position | HORIZONTAL |
| Connection Type | BUTT WELD PIPE FIRST END |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 2500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Media for Which Designed | WATER, FRESH SINGLE RESPONSE |
| Valve Operation Method | AUTOMATIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL F — Mutilate — Cut |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| F1318 PRIMARY | Meggitt Safety Systems, Inc. Dba Meggitt Control Systems-Ventura County (USA) |
| Reference | Meaning |
|---|---|
| 3280198 | 5/2 Secondary reference U.S. Government activity |
NSN 4820-00-554-9475 is a Valve,check, manufactured by Meggitt Safety Systems, Inc. Dba Meggitt Control Systems-Ventura County, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-554-9475 has 1 manufacturer part number on file: F1318 (Meggitt Safety Systems, Inc. Dba Meggitt Control Systems-Ventura County).
Key specifications for F1318: Flow Control Device: DISK; Nominal Pipe Size Accommodated: 2.500 INCHES FIRST END IN; Connection Style: BEVELED (PIPE) FIRST END; Mounting Position: HORIZONTAL. 9 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.
NSN 4820-00-554-9475 has DEMIL Code F. Demilitarization may be required before disposal or transfer to non-military entities.
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.