The Pump,reciprocating, cataloged under National Stock Number 4320-01-528-5609, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Bourns Inc. Government technical data includes 2 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-528-5609 |
| Primary Part Number | 2SF35ES |
| Item Name | Pump,reciprocating |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Bourns Inc |
| Status | ACTIVE |
| Pumping Element Operating Position | HORIZONTAL |
| Operation Method | POWERED |
| 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 |
|---|---|
| 2SF35ES PRIMARY | Bourns Inc (USA) |
| Reference | Meaning |
|---|---|
| 2SF35ES | 5/9 Secondary reference Cat Pumps Corp |
| 38828 | 5/9 Secondary reference Cat Pumps Corp |
| 2SF35 | 5/9 Secondary reference Cat Pumps Corp |
NSN 4320-01-528-5609 is a Pump,reciprocating, manufactured by Bourns Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-528-5609 has 1 manufacturer part number on file: 2SF35ES (Bourns Inc).
Key specifications for 2SF35ES: Pumping Element Operating Position: HORIZONTAL; Special Features: CAPACITY: 3.5 GPM. TOTAL DYNAMIC HEAD: 1500.0 PSI. TYPE: RECIPROCATING. DIAMETER OF CYLINDERS: .708 INCH. STROKE: .220 INCH. DRIVE TYPE: MOTOR DRIVEN. UNIFLOW DESIGN PROVIDES CONTINUOUS FLUID FLOW FORWARD THROUGH THE PUMP. INCLUDES SPRING LOADED INLET VALVES AND FLOW THROUGH CERAMIC PLUNGERS. IN; Part Name Assigned by Controlling Agency: SF TRIPLEX PLUNGER PUMP; Operation Method: POWERED. 2 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.