The Pump,axial Pistons, cataloged under National Stock Number 4320-01-300-5247, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4320-01-300-5247 |
| Primary Part Number | 857386 |
| Item Name | Pump,axial Pistons |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Eaton Aerospace, Llc Dba Jackson South |
| Status | ACTIVE |
| Discharge Connection Quantity | 2 |
| Pumping Element Type | PISTON |
| Pumping Element Operating Position | HORIZONTAL |
| Drive Shaft Length | 1.750 INCHES NOMINAL IN |
| Drive Connection Type | GEAR |
| Reciprocating Stroke Type | VARIABLE |
| Operating Speed at Rated Capacity | 1800.0 REVOLUTIONS PER MINUTE |
| Pump Reciprocating Design | DOUBLE ACTING |
| Discharge Connection Thread Size and Series/type Designator | 1.312-12 UN |
| Drive Shaft Type | PLAIN ROUND |
| Discharge Pressure | 000.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING SILICA FUME |
| Cylinder Quantity | 2 |
| Maximum Discharge Flow Rate | 5.0 GALLONS PER MINUTE |
| Drive Shaft End Diameter | 0.750 INCHES NOMINAL IN |
| Discharge Connection Type | THREADED INTERNAL |
| 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 |
|---|---|
| 857386 PRIMARY | Eaton Aerospace, Llc Dba Jackson South (USA) |
| PVB5-FRDY-21-H-10 PRIMARY | Eaton Aerospace, Llc Dba Jackson South (USA) |
| Reference | Meaning |
|---|---|
| PVB5-FRDY-20-H-11 | 5/9 Secondary reference Eaton Aerospace, Llc Dba Jackson South |
| PVB5-FRDY-21-H-11 | 5/9 Secondary reference Eaton Aerospace, Llc Dba Jackson South |
NSN 4320-01-300-5247 is a Pump,axial Pistons, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-300-5247 has 2 manufacturer part numbers on file: 857386 (Eaton Aerospace, Llc Dba Jackson South), PVB5-FRDY-21-H-10 (Eaton Aerospace, Llc Dba Jackson South).
1 possible match (shared part number, not a government interchangeability claim): 6750-01-387-5776. Verify interchangeability with system specifications before substitution.
Key specifications for 857386: Discharge Connection Quantity: 2; Pumping Element Type: PISTON; Pumping Element Operating Position: HORIZONTAL; Drive Shaft Length: 1.750 INCHES NOMINAL IN. 17 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.