The Pump,rotary, cataloged under National Stock Number 4320-01-256-9064, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Circor Pumps North America Llc. Government technical data includes 22 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4320-01-256-9064 |
| Primary Part Number | SDD10516 |
| Item Name | Pump,rotary |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Circor Pumps North America Llc |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Intake Connection Type | ROUND FLANGE |
| Pumping Element Operating Position | HORIZONTAL |
| Suction Lift | 2.000 FEET FT |
| Drive Shaft Length | 1.500 INCHES NOMINAL IN |
| Drive Connection Type | RIGID COUPLED |
| Unpackaged Unit Length | 9.200 INCHES NOMINAL IN |
| Operating Speed at Rated Capacity | 1750.0 REVOLUTIONS PER MINUTE |
| Unpackaged Unit Width | 7.000 INCHES NOMINAL IN |
| Drive Shaft Type | MACHINE KEYWAY |
| Specification/standard Data | 81349-MIL-P-19131AMEND-5/SHIPS/ GOVERNMENT SPECIFICATION |
| Nondefinitive Spec/std Data | 0-3 CLASS |
| Discharge Pressure | 1.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING SILICA FUME |
| Maximum Discharge Flow Rate | 11.0 GALLONS PER MINUTE |
| Drive Shaft End Diameter | 0.626 INCHES NOMINAL IN |
| Rotary Pump Design | GEAR |
| Discharge Connection Type | ROUND FLANGE |
| Intake Connection Quantity | 1 |
| Media for Which Designed | HYDROCARBON FUELS AND OILS |
| Pump Rotation Direction | CLOCKWISE |
| Mounting Type | BASE |
| 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 |
|---|---|
| SDD10516 PRIMARY | Circor Pumps North America Llc (USA) |
| SG-4601 GR.1 | Circor Pumps North America Llc (USA) |
| Reference | Meaning |
|---|---|
| MIL-P-19131 | 4/1 Identification reference U.S. Government activity |
| SDD10516 | 5/9 Secondary reference Siemens Energy, Inc. |
| SG-4601 GR.1 | 5/9 Secondary reference Siemens Energy, Inc. |
NSN 4320-01-256-9064 is a Pump,rotary, manufactured by Circor Pumps North America Llc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-256-9064 has 2 manufacturer part numbers on file: SDD10516 (Circor Pumps North America Llc), SG-4601 GR.1 (Circor Pumps North America Llc).
Key specifications for SDD10516: Discharge Connection Quantity: 1; Intake Connection Type: ROUND FLANGE; Pumping Element Operating Position: HORIZONTAL; Suction Lift: 2.000 FEET FT. 22 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.