The Valve,check, cataloged under National Stock Number 4820-01-425-0362, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Andritz Naf Ab. Government technical data includes 18 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-425-0362 |
| Primary Part Number | FK30.70(2)GB-526630-250MM |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Andritz Naf Ab |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Flange Shape | ROUND ALL ENDS |
| Flange Face Design | PLAIN ALL ENDS |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Material Document and Classification | ASTM A351,GR CF-8M ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Operating Pressure | 40.0 BAR MAXIMUM SINGLE RESPONSE |
| Valve Size | 114.0 MILLIMETERS MM |
| Maximum Operating Temp | 450.0 CELSIUS SINGLE RESPONSE DEGC |
| Nominal Outside Diameter | 315.0 MILLIMETERS ALL ENDS MM |
| Disk Loading Method | SPRING |
| Face to Face Distance | 250.0 MILLIMETERS MM |
| Media for Which Designed | LIQUID SINGLE RESPONSE |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Material | STEEL CORROSION RESISTING BODY |
| Valve Operation Method | AUTOMATIC |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY EXTRA LONG REFERENCE NUMBER |
| 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 |
|---|---|
| FK30.70(2)GB-526630-250MM | Andritz Naf Ab (SWE) |
| Reference | Meaning |
|---|---|
| 526630-DN250 | 5/9 Secondary reference Naf Ab |
| FK30.70(2)GB-526630-250MM | 5/9 Secondary reference Naf Ab |
| NAF 526630,DN 250,NAF-CHECK CHE | 5/9 Secondary reference Naf Ab |
| NAF 526630,DN 250,NAF-CHECK CHE- | 3/1 Design control — primary reference Andritz Naf Ab |
NSN 4820-01-425-0362 is a Valve,check, manufactured by Andritz Naf Ab, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-425-0362 has 1 manufacturer part number on file: FK30.70(2)GB-526630-250MM (Andritz Naf Ab).
Key specifications for FK30.70(2)GB-526630-250MM: Flow Control Device: DISK; Flange Shape: ROUND ALL ENDS; Flange Face Design: PLAIN ALL ENDS; Mounting Position: HORIZONTAL OR VERTICAL. 18 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.