The Valve,check, cataloged under National Stock Number 4820-01-016-5487, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Eaton Corp Hydraulics Div. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-016-5487 |
| Primary Part Number | C5G815S3 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Eaton Corp Hydraulics Div |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Renewable Seat Ring Type | PRESSED-IN |
| Center to Center Distance | 1.775 INCHES IN |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Disk Loading Method | SPRING |
| Mounting Facility | THREADED FASTENER |
| Surface Treatment | PAINT |
| Media for Which Designed | HYDRAULIC FLUID, PETROLEUM BASE SINGLE RESPONSE |
| Material | STEEL SEAT |
| Material | STEEL FLOW CONTROL DEVICE |
| Material | IRON CAST 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 |
|---|---|
| C5G815S3 PRIMARY | Eaton Corp Hydraulics Div (USA) |
| Reference | Meaning |
|---|---|
| C5G815S3 | 5/9 Secondary reference Eaton Aerospace, Llc Dba Jackson South |
NSN 4820-01-016-5487 is a Valve,check, manufactured by Eaton Corp Hydraulics Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-016-5487 has 1 manufacturer part number on file: C5G815S3 (Eaton Corp Hydraulics Div).
Key specifications for C5G815S3: Flow Control Device: POPPET; Renewable Seat Ring Type: PRESSED-IN; Center to Center Distance: 1.775 INCHES IN; Mounting Position: HORIZONTAL OR VERTICAL. 14 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.