The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-00-035-5535, 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18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-035-5535 |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Status | ACTIVE |
| Keyway Type | SQUARE |
| Keyway Depth | 0.16275 INCHES NOMINAL IN |
| FSC Application Data | FIRE PUMPS |
| Hub Bore Diameter | 1.2495 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN |
| Hub Length | 1.370 INCHES MINIMUM AND 1.380 INCHES MAXIMUM IN |
| Design Type | SINGLE WIDTH |
| Overall Diameter | 9.000 INCHES NOMINAL IN |
| Mounting Method | KEY |
| Keyway Quantity | 1 |
| Hub Projection Length Beyond Wheel Side | 0.344 INCHES NOMINAL IN |
| Blade Quantity | 8 |
| Keyway Length | 1.370 INCHES MINIMUM AND 1.380 INCHES MAXIMUM IN |
| Hub Quantity | 1 |
| Hub Location | SINGLE INSIDE OFFSET |
| Keyway Width | 0.374 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Material | COPPER ALLOY |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| 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 |
| Reference | Meaning |
|---|---|
| ZEYC16F9 | 3/9 Design control — primary reference Hale Products, Inc. |
NSN 4320-00-035-5535 is a Impeller,pump,centrifugal, classified under FSC 4320, Power and Hand Pumps. Status: active.
Key specifications for 4320-00-035-5535: Keyway Type: SQUARE; Keyway Depth: 0.16275 INCHES NOMINAL IN; FSC Application Data: FIRE PUMPS; Hub Bore Diameter: 1.2495 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM 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.