The Disk,valve, cataloged under National Stock Number 4820-01-428-6876, 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 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-428-6876 |
| Primary Part Number | 488210-80MM PN21 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Andritz Naf Ab |
| Status | ACTIVE |
| Pressure Rating | 195.0 POUNDS PER SQUARE INCH (PSI) MINIMUM AND 230.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Temp Rating | 300.0 FAHRENHEIT MINIMUM AND 450.0 FAHRENHEIT MAXIMUM DEGF |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 488210-80MM PN21 PRIMARY | Andritz Naf Ab (SWE) |
| Reference | Meaning |
|---|---|
| 488210-80MM PN21 | 3/9 Design control — primary reference Naf Ab |
NSN 4820-01-428-6876 is a Disk,valve, manufactured by Andritz Naf Ab, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-428-6876 has 1 manufacturer part number on file: 488210-80MM PN21 (Andritz Naf Ab).
Key specifications for 488210-80MM PN21: Pressure Rating: 195.0 POUNDS PER SQUARE INCH (PSI) MINIMUM AND 230.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS; Temp Rating: 300.0 FAHRENHEIT MINIMUM AND 450.0 FAHRENHEIT MAXIMUM DEGF; End Item Identification: STRATEGIC SEALIFT CONVERSION SHIPS CLASS; Material: STEEL CORROSION RESISTING. 3 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.