The Seat,valve, cataloged under National Stock Number 4820-01-424-3997, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Shinko Ind. Ltd. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-424-3997 |
| Primary Part Number | TH23004-217 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Shinko Ind. Ltd |
| Status | ACTIVE |
| Material | STEEL CORROSION RESISTING SEAT |
| 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 |
|---|---|
| TH23004-217 PRIMARY | Shinko Ind. Ltd (JPN) |
| Reference | Meaning |
|---|---|
| FTC-678036-217 | 5/9 Secondary reference Fuji Trading (america) Inc. |
| FTC-678036-217 | 5/9 Secondary reference Fuji Trading America Inc |
| TH23004 PT 217 | 5/9 Secondary reference Fuji Trading America Inc |
| TH23004 PT 217 | 5/9 Secondary reference Fuji Trading (america) Inc. |
| TH23004-217 | 3/9 Design control — primary reference Shinko Ind. Ltd |
NSN 4820-01-424-3997 is a Seat,valve, manufactured by Shinko Ind. Ltd, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-424-3997 has 1 manufacturer part number on file: TH23004-217 (Shinko Ind. Ltd).
Key specifications for TH23004-217: End Item Identification: STRATEGIC SEALIFT CONVERSION SHIPS CLASS; Material: STEEL CORROSION RESISTING SEAT. 1 specification is 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.