The Pump,axial Pistons, cataloged under National Stock Number 4320-01-295-7626, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Hartmann Controls, Inc Div Hartmann Controls. Government technical data includes 24 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-295-7626 |
| Primary Part Number | PV425R-BB4-A1 |
| Item Name | Pump,axial Pistons |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Hartmann Controls, Inc Div Hartmann Controls |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Pumping Element Type | PISTON |
| Intake Connection Type | THREADED INTERNAL |
| Pumping Element Operating Position | HORIZONTAL |
| Drive Shaft Length | 1.940 INCHES NOMINAL IN |
| Drive Connection Type | CLOSE COUPLED |
| Unpackaged Unit Length | 15.580 INCHES NOMINAL IN |
| Reciprocating Stroke Type | VARIABLE |
| Operating Speed at Rated Capacity | 1800.0 REVOLUTIONS PER MINUTE |
| Pump Reciprocating Design | SINGLE ACTING |
| Unpackaged Unit Width | 7.7500 INCHES NOMINAL IN |
| Discharge Connection Thread Size and Series/type Designator | 1.875-12 UNF |
| Drive Shaft Type | THREADED AND WOODRUFF KEYWAY |
| Intake Connection Thread Size and Series/type Designator | 1.875-12 UNF |
| Unpackaged Unit Height | 7.000 INCHES NOMINAL IN |
| Volume Control Type | PRESSURE COMPENSATION |
| Discharge Pressure | 000.0 COMPREHENSIVE PROCUREMENT GUIDELINE - VEHICULAR PRODUCTS - REBUILT VEHICULAR PARTS |
| Cylinder Quantity | 7 |
| Maximum Discharge Flow Rate | 32.7 GALLONS PER MINUTE |
| Drive Shaft End Diameter | 0.999 INCHES NOMINAL IN |
| Discharge Connection Type | THREADED INTERNAL |
| 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 |
|---|---|
| PV425R-BB4-A1 PRIMARY | Hartmann Controls, Inc Div Hartmann Controls (USA) |
| Reference | Meaning |
|---|---|
| 1353875 | 5/9 Secondary reference Cleveland Trencher Co Inc |
NSN 4320-01-295-7626 is a Pump,axial Pistons, manufactured by Hartmann Controls, Inc Div Hartmann Controls, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-295-7626 has 1 manufacturer part number on file: PV425R-BB4-A1 (Hartmann Controls, Inc Div Hartmann Controls).
Key specifications for PV425R-BB4-A1: Discharge Connection Quantity: 1; Pumping Element Type: PISTON; Intake Connection Type: THREADED INTERNAL; Pumping Element Operating Position: HORIZONTAL. 24 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.