The Pump,hydraulic Ram,hand Driven, cataloged under National Stock Number 4320-01-462-0579, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4320-01-462-0579 |
| Primary Part Number | 12-591-1 |
| Item Name | Pump,hydraulic Ram,hand Driven |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division |
| Status | ACTIVE |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Operating Speed Quantity | 1 |
| Hose | NOT INCLUDED |
| 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 |
|---|---|
| 12-591-1 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (USA) |
| Reference | Meaning |
|---|---|
| 12-591-1 | 5/9 Secondary reference U.S. Government activity |
NSN 4320-01-462-0579 is a Pump,hydraulic Ram,hand Driven, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-462-0579 has 1 manufacturer part number on file: 12-591-1 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-464-0941. Verify interchangeability with system specifications before substitution.
Key specifications for 12-591-1: Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS; Operating Speed Quantity: 1; Hose: NOT INCLUDED; Special Features: ALUMINUM BODY;INSIDE PARTS STAINLESS STEEL;DISPLACEMENT .7000 CUBIC IN. PER CYCLE;WT 2.600 LBS;INCLUDED HANDLE WT 2.000 LBS;HANDLE 22.000 IN.LG;CONNECTING PORTS INLET/OUTLET SZ PER MS16142-8 LBS. 3 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.