The Pump Unit,axial Pistons, cataloged under National Stock Number 4320-01-009-4055, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. Government technical data includes 29 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4320-01-009-4055 |
| Item Name | Pump Unit,axial Pistons |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Phase | THREE |
| Pumping Element Type | PISTON |
| Intake Connection Type | THREADED INTERNAL |
| Frequency in Hertz | 400.0 |
| Inclosure Type | FULLY INCLOSED |
| Current Type | AC |
| Pumping Element Operating Position | HORIZONTAL |
| Prime Mover Power Rating | 7.0 HORSEPOWER |
| Reciprocating Stroke Type | VARIABLE |
| Voltage in Volts | 115.0 AND 200.0 |
| Cooling Method | BLOWER COOLED |
| Prime Mover Quantity | 1 |
| Operating Speed at Rated Capacity | 4500.0 REVOLUTIONS PER MINUTE |
| Pump Quantity | 1 |
| Pump Reciprocating Design | SINGLE ACTING |
| Control Location | CENTER |
| Discharge Connection Thread Size and Series/type Designator | 0.750-16 UNF |
| Prime Mover Cooling Medium | AIR |
| Intake Connection Thread Size and Series/type Designator | 0.875-14 UNF |
| Volume Control Type | PRESSURE COMPENSATION |
| Discharge Pressure | 700.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING SILICA FUME |
| Environmental Protection | EXPLOSION PROOF |
| Cylinder Quantity | 7 |
| Maximum Discharge Flow Rate | 3.0 GALLONS PER MINUTE |
| Discharge Connection Type | THREADED INTERNAL |
| Intake Connection Quantity | 1 |
| Prime Mover Type | ELECTRIC MOTOR |
| Mounting Type | BASE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 10-61292-3 | 7/2 Vendor item drawing reference U.S. Government activity |
| 10470-5 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4320-01-009-4055 is a Pump Unit,axial Pistons, classified under FSC 4320, Power and Hand Pumps. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6110-01-674-7437. Verify interchangeability with system specifications before substitution.
Key specifications for 4320-01-009-4055: Discharge Connection Quantity: 1; Phase: THREE; Pumping Element Type: PISTON; Intake Connection Type: THREADED INTERNAL. 29 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.
NSN 4320-01-009-4055 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.