The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-00-218-1990, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions. Government technical data includes 17 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-218-1990 |
| Primary Part Number | 182214C246 |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| Status | ACTIVE |
| Keyway Type | RECTANGULAR |
| Keyway Depth | 0.062 INCHES NOMINAL IN |
| Hub Bore Diameter | 0.750 INCHES NOMINAL AND 1.625 INCHES NOMINAL IN |
| Hub Length | 0.375 INCHES NOMINAL AND 0.750 INCHES NOMINAL IN |
| Design Type | SINGLE WIDTH |
| Overall Diameter | 5.250 INCHES NOMINAL IN |
| Mounting Method | KEY |
| Keyway Quantity | 1 |
| Hub Projection Length Beyond Wheel Side | 0.375 INCHES NOMINAL AND 0.750 INCHES NOMINAL IN |
| Blade Quantity | 5 |
| Keyway Length | 0.885 INCHES NOMINAL IN |
| Hub Quantity | 2 |
| Hub Location | BACK SIDE AND FRONT SIDE |
| Keyway Width | 0.123 INCHES NOMINAL IN |
| Material | ALUMINUM |
| Rotation Direction for Which Designed | CLOCKWISE |
| Blade Type | FORWARD CURVE |
| 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 |
|---|---|
| 182214C246 PRIMARY | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| Reference | Meaning |
|---|---|
| 182214PC246 | 5/9 Secondary reference Ingersoll Rand Co |
| 182214C246 | 3/9 Design control — primary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 182214C246 | 5/9 Secondary reference U.S. Government activity |
| 182214-246 | 5/9 Secondary reference U.S. Government activity |
| 182214-246 | 5/9 Secondary reference Ingersoll Rand Co |
NSN 4320-00-218-1990 is a Impeller,pump,centrifugal, manufactured by Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-218-1990 has 1 manufacturer part number on file: 182214C246 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions).
Key specifications for 182214C246: Keyway Type: RECTANGULAR; Keyway Depth: 0.062 INCHES NOMINAL IN; Hub Bore Diameter: 0.750 INCHES NOMINAL AND 1.625 INCHES NOMINAL IN; Hub Length: 0.375 INCHES NOMINAL AND 0.750 INCHES NOMINAL IN. 17 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.