The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-252-5556, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Wilo Usa Llc. Government technical data includes 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-252-5556 |
| Primary Part Number | 131.000.130 |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Wilo Usa Llc |
| Status | ACTIVE |
| Keyway Type | MACHINE |
| Keyway Depth | 0.063 INCHES NOMINAL IN |
| Hub Bore Diameter | 0.875 INCHES NOMINAL IN |
| Hub Length | 2.500 INCHES NOMINAL IN |
| Design Type | SINGLE WIDTH |
| Overall Diameter | 5.120 INCHES NOMINAL IN |
| Mounting Method | KEY |
| Keyway Quantity | 1 |
| Hub Projection Length Beyond Wheel Side | 0.625 INCHES NOMINAL IN |
| Blade Quantity | 5 |
| Keyway Length | 1.125 INCHES NOMINAL IN |
| Hub Quantity | 1 |
| Hub Location | CENTRALLY |
| Keyway Width | 0.125 INCHES NOMINAL IN |
| Cubic Measure | 0.020 CUBIC FEET |
| Material | COPPER ALLOY |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| 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 |
|---|---|
| 131.000.130 PRIMARY | Wilo Usa Llc (USA) |
| Reference | Meaning |
|---|---|
| 131-000-177DM | 5/9 Secondary reference Wilo Usa Llc |
NSN 4320-01-252-5556 is a Impeller,pump,centrifugal, manufactured by Wilo Usa Llc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-252-5556 has 1 manufacturer part number on file: 131.000.130 (Wilo Usa Llc).
Key specifications for 131.000.130: Keyway Type: MACHINE; Keyway Depth: 0.063 INCHES NOMINAL IN; Hub Bore Diameter: 0.875 INCHES NOMINAL IN; Hub Length: 2.500 INCHES NOMINAL IN. 18 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.