The Pump Unit,hydraulic, cataloged under National Stock Number 4320-01-534-3122, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Unex Corp Hytorc Div. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4320-01-534-3122 |
| Primary Part Number | SST20 |
| Item Name | Pump Unit,hydraulic |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Unex Corp Hytorc Div |
| Status | ACTIVE |
| 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 |
|---|---|
| SST20 PRIMARY | Unex Corp Hytorc Div (USA) |
| Reference | Meaning |
|---|---|
| ASC1605264 | 5/9 Secondary reference Asc Pty Ltd |
NSN 4320-01-534-3122 is a Pump Unit,hydraulic, manufactured by Unex Corp Hytorc Div, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-534-3122 has 1 manufacturer part number on file: SST20 (Unex Corp Hytorc Div).
Key specifications for SST20: Special Features: REMOTE CONTROL OPERATION; MICRO-SEAT PRESSURE REGULATOR; 1 GALLON RESERVOIR W/CENTER LIFT HANDLE; FOR SINGLE OR DOUBLE ACTING CYLINDERS; W/AUTO RELEASE OIL PRESSURE VALVE; ROLL CAGE; HOSE KIT 4.5 METER NON-CONDUCTIVE; LARGE OIL SUMP; STAINLESS STEEL SCREWS IN AREAS EXPOSED TO ATMOSPHERE; MODIFIED DIRECTIONAL CONTROL VALVE FOR OPERATION AT ALTITUDE. 0 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.