The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-196-1460, 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 9 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-196-1460 |
| Primary Part Number | 1A451 |
| 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 | SQUARE |
| Keyway Depth | 0.375 INCHES NOMINAL IN |
| Overall Diameter | 13.750 INCHES NOMINAL IN |
| Mounting Method | KEY |
| Keyway Quantity | 1 |
| Keyway Length | 2.875 INCHES NOMINAL IN |
| Keyway Width | 0.375 INCHES NOMINAL IN |
| Material | NICKEL ALLOY |
| 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 | X |
| Part Number | Manufacturer |
|---|---|
| 1A451 PRIMARY | Circor Naval Solutions Llc Dba Warren Pumps (USA) |
| Reference | Meaning |
|---|---|
| R-691 | D/9 Drawing number reference only Circor Naval Solutions Llc Dba Warren Pumps |
| R-691 PIECE 26 | 5/9 Secondary reference Circor Naval Solutions Llc Dba Warren Pumps |
| ND-17814 | D/9 Drawing number reference only Circor Naval Solutions Llc Dba Warren Pumps |
NSN 4320-01-196-1460 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 4320-01-196-1460 has 1 manufacturer part number on file: 1A451 (Circor Naval Solutions Llc Dba Warren Pumps).
Key specifications for 1A451: Keyway Type: SQUARE; Keyway Depth: 0.375 INCHES NOMINAL IN; Overall Diameter: 13.750 INCHES NOMINAL IN; Mounting Method: KEY. 9 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.