The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-258-0013, 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 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4320-01-258-0013 |
| Primary Part Number | 131.000.540 |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Wilo Usa Llc |
| Status | ACTIVE |
| Design Type | SINGLE WIDTH |
| Overall Diameter | 4.410 INCHES NOMINAL IN |
| Mounting Method | THREAD |
| Thread Diameter | 0.500 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Blade Quantity | 4 |
| Screw Thread Series Designator | UNF |
| Cubic Measure | 0.300 CUBIC FEET |
| Material | COPPER ALLOY |
| Thread Quantity | 20 PER INCH |
| Rotation Direction for Which Designed | CLOCKWISE |
| Blade Type | STRAIGHT |
| 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 |
|---|---|
| 131.000.540 PRIMARY | Wilo Usa Llc (USA) |
| Reference | Meaning |
|---|---|
| 131.000.540M | 5/9 Secondary reference Wilo Usa Llc |
NSN 4320-01-258-0013 is a Impeller,pump,centrifugal, manufactured by Wilo Usa Llc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-258-0013 has 1 manufacturer part number on file: 131.000.540 (Wilo Usa Llc).
Key specifications for 131.000.540: Design Type: SINGLE WIDTH; Overall Diameter: 4.410 INCHES NOMINAL IN; Mounting Method: THREAD; Thread Diameter: 0.500 INCHES NOMINAL IN. 12 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.