The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-142-9040, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Circor Naval Solutions Llc Dba Warren Pumps. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-142-9040 |
| Primary Part Number | A696 |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Circor Naval Solutions Llc Dba Warren Pumps |
| Status | ACTIVE |
| Keyway Type | STRAIGHT |
| Keyway Depth | 0.161 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN |
| Hub Bore Diameter | 1.9990 INCHES MINIMUM AND 1.9995 INCHES MAXIMUM IN |
| Overall Diameter | 9.500 INCHES NOMINAL IN |
| Mounting Method | KEY |
| Keyway Quantity | 1 |
| Blade Quantity | 22 |
| Keyway Length | 1.9373 INCHES MINIMUM AND 1.9375 INCHES MAXIMUM IN |
| Hub Quantity | 1 |
| Hub Location | CENTER OF MOUNTING FLANGE |
| Keyway Width | 0.312 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 657C1315B478A | Circor Naval Solutions Llc Dba Warren Pumps (USA) |
| PL999R0523PC16 | Circor Naval Solutions Llc Dba Warren Pumps (USA) |
| A696 PRIMARY | Circor Naval Solutions Llc Dba Warren Pumps (USA) |
NSN 4320-01-142-9040 is a Impeller,pump,centrifugal, manufactured by Circor Naval Solutions Llc Dba Warren Pumps, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-142-9040 has 3 manufacturer part numbers on file: 657C1315B478A (Circor Naval Solutions Llc Dba Warren Pumps), PL999R0523PC16 (Circor Naval Solutions Llc Dba Warren Pumps), A696 (Circor Naval Solutions Llc Dba Warren Pumps).
Key specifications for A696: Keyway Type: STRAIGHT; Keyway Depth: 0.161 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN; Hub Bore Diameter: 1.9990 INCHES MINIMUM AND 1.9995 INCHES MAXIMUM IN; Overall Diameter: 9.500 INCHES NOMINAL IN. 13 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.