The Valve,flow Control, cataloged under National Stock Number 4820-01-565-1056, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Liquip International Pty Ltd. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-565-1056 |
| Primary Part Number | A-5570-1 |
| Item Name | Valve,flow Control |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Liquip International Pty Ltd |
| Status | ACTIVE |
| Flow Control Device | STEM |
| Operating Pressure and Type | 860.0 KILOPASCALS (KPA) HYDROCARBON FUEL OR OIL MAXIMUM REQUIRED |
| Nominal Thread Size | 0.500 INCHES IN |
| Body Material | STEEL |
| Seat Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Thread Quantity Per Inch | 20 |
| Thread Series Designator | UNF |
| Valve Operation Method | 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 |
|---|---|
| A-5570-1 | Liquip International Pty Ltd (AUS) |
| Reference | Meaning |
|---|---|
| A-5570-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-565-1056 is a Valve,flow Control, manufactured by Liquip International Pty Ltd, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-565-1056 has 1 manufacturer part number on file: A-5570-1 (Liquip International Pty Ltd).
Key specifications for A-5570-1: Flow Control Device: STEM; Operating Pressure and Type: 860.0 KILOPASCALS (KPA) HYDROCARBON FUEL OR OIL MAXIMUM REQUIRED; Nominal Thread Size: 0.500 INCHES IN; Body Material: STEEL. 8 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.