The Pump Unit,rotary, cataloged under National Stock Number 4320-00-540-0201, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Ontic Engineering & Manufacturing, Inc Dba Ontic Us. Government technical data includes 20 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-540-0201 |
| Primary Part Number | 1EAR280BHC3 |
| Item Name | Pump Unit,rotary |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Intake Connection Type | THREADED INTERNAL |
| Inclosure Type | FULLY INCLOSED |
| Current Type | DC |
| Pumping Element Operating Position | HORIZONTAL |
| Prime Mover Power Rating | 3.000 HORSEPOWER |
| Voltage in Volts | 24.0 |
| Prime Mover Quantity | 1 |
| Operating Speed at Rated Capacity | 2500.0 REVOLUTIONS PER MINUTE |
| Pump Quantity | 1 |
| Discharge Connection Thread Size and Series/type Designator | 0.705 NPT |
| Prime Mover Cooling Medium | AIR |
| Intake Connection Thread Size and Series/type Designator | 0.750 NPT |
| Discharge Pressure | 000.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING CENOSPHERES |
| Environmental Protection | DUST-IGNITION PROOF |
| Maximum Discharge Flow Rate | 2.4 GALLONS PER MINUTE |
| Rotary Pump Design | GEAR |
| Discharge Connection Type | THREADED INTERNAL |
| Intake Connection Quantity | 1 |
| Prime Mover Type | ELECTRIC MOTOR |
| 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 |
|---|---|
| 1EAR280BHC3 PRIMARY | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| Reference | Meaning |
|---|---|
| 1EAR280BHC3 | 5/9 Secondary reference Donallco Inc |
NSN 4320-00-540-0201 is a Pump Unit,rotary, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-540-0201 has 1 manufacturer part number on file: 1EAR280BHC3 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).
Key specifications for 1EAR280BHC3: Discharge Connection Quantity: 1; Intake Connection Type: THREADED INTERNAL; Inclosure Type: FULLY INCLOSED; Current Type: DC. 20 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.