The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-319-8003, 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 6 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4320-01-319-8003 |
| Primary Part Number | 5HEA3EX1 |
| 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 |
| Design Type | SINGLE WIDTH |
| Overall Diameter | 14.500 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-867, CLASS 1 MIL SPEC SINGLE MATERIAL RESPONSE |
| Blade Quantity | 5 |
| Material | STEEL UNS J92650 |
| Rotation Direction for Which Designed | CLOCKWISE |
| 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 |
|---|---|
| 5HEA3EX1 PRIMARY | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| Reference | Meaning |
|---|---|
| W5HEA3AX1 | 5/9 Secondary reference U.S. Government activity |
| 5HEA3EX1 | 3/9 Design control — primary reference Siemens Energy, Inc. Dba Dresser-Rand |
| W5HEA3AX1 | C/1 Advisory reference — outside the item-of-supply concept Ingersoll Rand Co |
| 5HEA3EX1 | 5/9 Secondary reference U.S. Government activity |
| 5HEA3EX1 | 5/9 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions |
NSN 4320-01-319-8003 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 4320-01-319-8003 has 1 manufacturer part number on file: 5HEA3EX1 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions).
Key specifications for 5HEA3EX1: Design Type: SINGLE WIDTH; Overall Diameter: 14.500 INCHES NOMINAL IN; Material Document and Classification: MIL-S-867, CLASS 1 MIL SPEC SINGLE MATERIAL RESPONSE; Overall Width: 4.500 INCHES NOMINAL IN. 6 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.