The Pump,axial Pistons, cataloged under National Stock Number 4320-00-591-9469, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Vickers S Y S Inc. Government technical data includes 19 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 | 4320-00-591-9469 |
| Primary Part Number | PVB45FRSF20C11 |
| Item Name | Pump,axial Pistons |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Vickers S Y S Inc |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Pumping Element Type | PISTON |
| Intake Connection Type | SQUARE FLANGE |
| Pumping Element Operating Position | HORIZONTAL |
| Drive Shaft Length | 3.220 INCHES NOMINAL IN |
| Drive Connection Type | CLOSE COUPLED |
| Reciprocating Stroke Type | VARIABLE |
| Operating Speed at Rated Capacity | 1800.0 REVOLUTIONS PER MINUTE |
| Pump Reciprocating Design | SINGLE ACTING |
| Drive Shaft Type | MACHINE KEYWAY |
| Volume Control Type | PRESSURE COMPENSATION |
| Discharge Pressure | 500.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING CENOSPHERES |
| Cylinder Quantity | 9 |
| Maximum Discharge Flow Rate | 45.0 GALLONS PER MINUTE |
| Drive Shaft End Diameter | 0.999 INCHES NOMINAL IN |
| Discharge Connection Type | SQUARE FLANGE |
| Intake Connection Quantity | 1 |
| Media for Which Designed | HYDROCARBON FUELS AND OILS |
| Pump Rotation Direction | CLOCKWISE |
| 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 |
|---|---|
| PVB45FRSF20C11 PRIMARY | Vickers S Y S Inc (CAN) |
NSN 4320-00-591-9469 is a Pump,axial Pistons, manufactured by Vickers S Y S Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-591-9469 has 1 manufacturer part number on file: PVB45FRSF20C11 (Vickers S Y S Inc).
1 possible match (shared part number, not a government interchangeability claim): 4320-01-258-3815. Verify interchangeability with system specifications before substitution.
Key specifications for PVB45FRSF20C11: Discharge Connection Quantity: 1; Pumping Element Type: PISTON; Intake Connection Type: SQUARE FLANGE; Pumping Element Operating Position: HORIZONTAL. 19 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.