The Pump,hydraulic Ram,hand Driven, cataloged under National Stock Number 4320-01-149-7653, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is The Entwistle Company Llc. Government technical data includes 13 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-149-7653 |
| Primary Part Number | KT-4564 |
| Item Name | Pump,hydraulic Ram,hand Driven |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | The Entwistle Company Llc |
| Status | ACTIVE |
| Outlet Connection Quantity | 2 |
| Outlet Hose Diameter | 0.562 INCHES NOMINAL IN |
| Inlet Connection Quantity | 1 |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Inlet Connection Type | THREADED FEMALE |
| Operating Speed Quantity | 1 |
| Inlet Hose Diameter | 0.562 INCHES NOMINAL IN |
| Hose | INCLUDED |
| Inlet Connection Thread Size and Series/type Designator | 0.438-20 UNF |
| Outlet Connection Thread Size and Series/type Designator | 0.438-20 UNF |
| Outlet Hose Length | 12.000 FEET NOMINAL FT |
| Outlet Connection Type | THREADED MALE |
| Inlet Hose Length | 12.000 FEET NOMINAL FT |
| 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 |
|---|---|
| KT-4564 PRIMARY | The Entwistle Company Llc (USA) |
| Reference | Meaning |
|---|---|
| KT-3225-1 | 3/9 Design control — primary reference Entwistle Co the Kenett Hydraulic Systems Div |
| HAC1084 | 5/9 Secondary reference Flodraulic Group Incorporated |
| KT-3225-1 | 5/9 Secondary reference The Entwistle Company Llc |
NSN 4320-01-149-7653 is a Pump,hydraulic Ram,hand Driven, manufactured by The Entwistle Company Llc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-149-7653 has 1 manufacturer part number on file: KT-4564 (The Entwistle Company Llc).
6 possible matches (shared part number, not a government interchangeability claim): 4320-01-150-3814, 4820-01-151-3523, 4320-01-151-3891. Verify interchangeability with system specifications before substitution.
Key specifications for KT-4564: Outlet Connection Quantity: 2; Outlet Hose Diameter: 0.562 INCHES NOMINAL IN; Inlet Connection Quantity: 1; Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS. 13 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.