The Pump,rotary, cataloged under National Stock Number 4320-00-781-1920, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-781-1920 |
| Item Name | Pump,rotary |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Intake Connection Type | THREADED INTERNAL |
| Drive Shaft Length | 1.938 INCHES NOMINAL IN |
| Drive Connection Type | RIGID COUPLED |
| Operating Speed at Rated Capacity | 1800.0 REVOLUTIONS PER MINUTE AND 1200.0 REVOLUTIONS PER MINUTE |
| Control Location | CENTER |
| Discharge Connection Thread Size and Series/type Designator | 1.000-11-1/2 NPT |
| Drive Shaft Type | WOODRUFF KEYWAY |
| Intake Connection Thread Size and Series/type Designator | 1.000-11-1/2 NPT |
| Volume Control Type | ROTARY |
| Discharge Pressure | 50.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING CENOSPHERES AND 00.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING CENOSPHERES |
| Maximum Discharge Flow Rate | 36.0 GALLONS PER MINUTE AND 25.0 GALLONS PER MINUTE |
| Drive Shaft End Diameter | 0.750 INCHES NOMINAL IN |
| Rotary Pump Design | GEAR |
| Discharge Connection Type | THREADED INTERNAL |
| Intake Connection Quantity | 1 |
| Media for Which Designed | HYDROCARBON FUELS AND OILS |
| Pump Rotation Direction | CLOCKWISE |
| 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 |
| Reference | Meaning |
|---|---|
| 4CBGFC | 3/9 Design control — primary reference Tuthill Corporation Dba Tuthill Pump Group |
NSN 4320-00-781-1920 is a Pump,rotary, classified under FSC 4320, Power and Hand Pumps. Status: active.
Key specifications for 4320-00-781-1920: Discharge Connection Quantity: 1; Intake Connection Type: THREADED INTERNAL; Drive Shaft Length: 1.938 INCHES NOMINAL IN; Drive Connection Type: RIGID COUPLED. 19 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.