The Valve,check, cataloged under National Stock Number 4820-01-233-3265, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Danfoss Power Solutions II, Llc. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-233-3265 |
| Primary Part Number | 0565618 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Danfoss Power Solutions II, Llc |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Media for Which Designed | HYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE |
| Material | STEEL SEAT |
| Material | STEEL FLOW CONTROL DEVICE |
| Material | ALUMINUM ALLOY BODY |
| 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 |
|---|---|
| 2CX354 | Oshkosh Defense Llc (USA) |
| 0565618 PRIMARY | Danfoss Power Solutions II, Llc (USA) |
| 2602-135 | Caley Ocean Systems Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 2CX354 | 5/9 Secondary reference Oshkosh Corp |
| CV1-16-P-X-XX | D/9 Drawing number reference only Modular Controls Corp |
| CV1-16-P-0-5 | 3/9 Design control — primary reference Modular Controls Corp |
NSN 4820-01-233-3265 is a Valve,check, manufactured by Danfoss Power Solutions II, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-233-3265 has 3 manufacturer part numbers on file: 2CX354 (Oshkosh Defense Llc), 0565618 (Danfoss Power Solutions II, Llc), 2602-135 (Caley Ocean Systems Ltd).
Key specifications for 0565618: Flow Control Device: POPPET; Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Special Features: CARTRIDGE TYPE; Media for Which Designed: HYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE. 6 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.