The Pump Subassembly,centrifugal, cataloged under National Stock Number 4320-01-232-9989, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Euramco Safety Inc. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-232-9989 |
| Primary Part Number | 55-22054-100-3 |
| Item Name | Pump Subassembly,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Euramco Safety Inc |
| Status | ACTIVE |
| Major Components | SHAFT 1; IMPELLER 1; WEARING RING 1; MECH SEAL ASSY 1; BEARING ASSY 1; BEARING HOUSING 1 |
| 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 |
|---|---|
| 55-22054-100-3 | Euramco Safety Inc (USA) |
| Reference | Meaning |
|---|---|
| 384583-00 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 384583PH | 3/9 Design control — primary reference U.S. Government activity |
| 384583PH | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corporation Div Epd |
NSN 4320-01-232-9989 is a Pump Subassembly,centrifugal, manufactured by Euramco Safety Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-232-9989 has 1 manufacturer part number on file: 55-22054-100-3 (Euramco Safety Inc).
Key specifications for 55-22054-100-3: Major Components: SHAFT 1; IMPELLER 1; WEARING RING 1; MECH SEAL ASSY 1; BEARING ASSY 1; BEARING HOUSING 1; End Item Identification: 4320-01-142-4150 PUMP UNIT,CENTRIFUGAL. 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.