The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-00-571-5889, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-571-5889 |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Status | ACTIVE |
| Keyway Type | RECTANGULAR |
| Keyway Depth | 0.125 INCHES NOMINAL IN |
| Hub Bore Diameter | 1.251 INCHES MINIMUM AND 1.252 INCHES MAXIMUM IN |
| Hub Length | 1.718 INCHES NOMINAL IN |
| Design Type | SINGLE WIDTH |
| Overall Diameter | 8.312 INCHES NOMINAL IN |
| Mounting Method | KEY |
| Material Document and Classification | QQ-N-288 COMPOSITION E FED SPEC SINGLE MATERIAL RESPONSE |
| Keyway Quantity | 1 |
| Hub Projection Length Beyond Wheel Side | 0.780 INCHES NOMINAL IN |
| Blade Quantity | 2 |
| Keyway Length | 1.718 INCHES NOMINAL IN |
| Hub Quantity | 1 |
| Hub Location | BACK SIDE |
| Keyway Width | 0.250 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN |
| Material | NICKEL ALLOY |
| 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 |
| Reference | Meaning |
|---|---|
| 056515 | 3/2 Design control — primary reference U.S. Government activity |
| 56515 | 5/9 Secondary reference U.S. Government activity |
NSN 4320-00-571-5889 is a Impeller,pump,centrifugal, classified under FSC 4320, Power and Hand Pumps. Status: active.
Key specifications for 4320-00-571-5889: Keyway Type: RECTANGULAR; Keyway Depth: 0.125 INCHES NOMINAL IN; Hub Bore Diameter: 1.251 INCHES MINIMUM AND 1.252 INCHES MAXIMUM IN; Hub Length: 1.718 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.