The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-131-3340, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Cummins Inc.. 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-131-3340 |
| Primary Part Number | 201161 |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Cummins Inc. |
| Status | ACTIVE |
| Design Type | SINGLE WIDTH |
| Overall Diameter | 5.250 INCHES NOMINAL IN |
| Blade Quantity | 6 |
| Material | IRON |
| Rotation Direction for Which Designed | CLOCKWISE |
| Blade Type | BACKWARD 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 |
|---|---|
| 201161 PRIMARY | Cummins Inc. (USA) |
NSN 4320-01-131-3340 is a Impeller,pump,centrifugal, manufactured by Cummins Inc., classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-131-3340 has 1 manufacturer part number on file: 201161 (Cummins Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5306-01-562-4656. Verify interchangeability with system specifications before substitution.
Key specifications for 201161: Design Type: SINGLE WIDTH; Overall Diameter: 5.250 INCHES NOMINAL IN; Overall Width: 1.562 INCHES NOMINAL IN; Blade Quantity: 6. 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.