The Pump,centrifugal, cataloged under National Stock Number 4320-01-258-4976, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is W B Arnold Company, Inc.. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Pump,centrifugal |
| FSC / FSG | 4320 — Power and Hand Pumps (FSG 43) |
| Manufacturers | W B Arnold Company, Inc. (CAGE 2H266) |
| Parameter | Value |
|---|---|
| NSN | 4320-01-258-4976 |
| Primary Part Number | 450085 |
| Item Name | Pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | W B Arnold Company, Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 450085 PRIMARY | W B Arnold Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 450085 | 5/9 Secondary reference Wartsila Water Systems Limited |
| 85114155 | 3/9 Design control — primary reference W B Arnold Company, Inc. |
| 85114155 | 5/9 Secondary reference Wartsila Water Systems Limited |
NSN 4320-01-258-4976 is a Pump,centrifugal, manufactured by W B Arnold Company, Inc., classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-258-4976 has 1 manufacturer part number on file: 450085 (W B Arnold Company, Inc.).
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.