The Pump,rotary, cataloged under National Stock Number 4320-01-461-3074, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.. Government technical data includes 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-461-3074 |
| Primary Part Number | H9311-AA1-2A |
| Item Name | Pump,rotary |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Pumping Element Operating Position | HORIZONTAL |
| Drive Shaft Length | 0.750 INCHES NOMINAL IN |
| Drive Connection Type | CLOSE COUPLED |
| Operating Speed at Rated Capacity | 3000.0 REVOLUTIONS PER MINUTE |
| Discharge Connection Thread Size and Series/type Designator | 0.562-18 UNF |
| Drive Shaft Type | KEY TYPE, EXTERNAL |
| Discharge Pressure | 600.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING SILICA FUME |
| Maximum Discharge Flow Rate | 5.50 GALLONS PER MINUTE |
| Drive Shaft End Diameter | 0.500 INCHES NOMINAL IN |
| Rotary Pump Design | GEAR |
| Discharge Connection Type | THREADED EXTERNAL |
| Pump Rotation Direction | COUNTERCLOCKWISE |
| 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 |
|---|---|
| H9311-AA1-2A PRIMARY | Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| P311-AA2-2A | 5/9 Secondary reference Howden Fluid Systems |
| P311-AA2-2A | 5/9 Secondary reference Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. |
NSN 4320-01-461-3074 is a Pump,rotary, manufactured by Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc., classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-461-3074 has 1 manufacturer part number on file: H9311-AA1-2A (Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.).
Key specifications for H9311-AA1-2A: Discharge Connection Quantity: 1; Pumping Element Operating Position: HORIZONTAL; Drive Shaft Length: 0.750 INCHES NOMINAL IN; Drive Connection Type: CLOSE COUPLED. 14 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.