The Pump,centrifugal, cataloged under National Stock Number 4320-01-275-0171, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Waterous Company. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-275-0171 |
| Primary Part Number | CPF-2-300BZ |
| Item Name | Pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Waterous Company |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Intake Connection Type | THREADED INTERNAL |
| Drive Shaft Length | 6.375 INCHES NOMINAL IN |
| Drive Connection Type | CLOSE COUPLED |
| Centrifugal Pump Impeller Quantity | 1 |
| Centrifugal Pump Impeller Suction Type | DOUBLE |
| Discharge Connection Thread Size and Series/type Designator | 2.000-11-1/2 NPT |
| Drive Shaft Type | MACHINE KEYWAY |
| Intake Connection Thread Size and Series/type Designator | 3.000-11-1/2 NPT |
| Stage Quantity | 1 |
| Discharge Pressure | 50.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING CENOSPHERES |
| Maximum Discharge Flow Rate | 300.0 GALLONS PER MINUTE |
| Drive Shaft End Diameter | 1.125 INCHES NOMINAL IN |
| Discharge Connection Type | THREADED INTERNAL |
| Intake Connection Quantity | 1 |
| Media for Which Designed | WATER, FRESH |
| Pump Rotation Direction | CLOCKWISE |
| Mounting Type | BASE |
| Centrifugal Pump Design | MIXED FLOW |
| 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 |
|---|---|
| CPF-2-300BZ PRIMARY | Waterous Company (USA) |
NSN 4320-01-275-0171 is a Pump,centrifugal, manufactured by Waterous Company, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-275-0171 has 1 manufacturer part number on file: CPF-2-300BZ (Waterous Company).
Key specifications for CPF-2-300BZ: Discharge Connection Quantity: 1; Intake Connection Type: THREADED INTERNAL; Drive Shaft Length: 6.375 INCHES NOMINAL IN; Drive Connection Type: CLOSE COUPLED. 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.