The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-411-0679, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Alfred Conhagen, Inc.. Government technical data includes 10 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4320-01-411-0679 |
| Primary Part Number | EE-1091 |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Alfred Conhagen, Inc. |
| Status | ACTIVE |
| Keyway Type | RECTANGULAR |
| Keyway Depth | 0.250 INCHES NOMINAL IN |
| Design Type | SINGLE WIDTH |
| Overall Diameter | 6.250 INCHES NOMINAL IN |
| Mounting Method | KEY |
| Keyway Quantity | 1 |
| Keyway Length | 1.875 INCHES NOMINAL IN |
| Keyway Width | 0.250 INCHES NOMINAL IN |
| Material | NICKEL ALLOY |
| Rotation Direction for Which Designed | CLOCKWISE |
| 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 |
|---|---|
| EE-1091 PRIMARY | Alfred Conhagen, Inc. (USA) |
| Reference | Meaning |
|---|---|
| EE-1091-6.25 IN | C/1 Advisory reference — outside the item-of-supply concept Alfred Conhagen, Inc. |
| EL-1091 | 5/1 Secondary reference Alfred Conhagen, Inc. |
| PL-1091 ITEM 4 | 3/1 Design control — primary reference Alfred Conhagen, Inc. |
NSN 4320-01-411-0679 is a Impeller,pump,centrifugal, manufactured by Alfred Conhagen, Inc., classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-411-0679 has 1 manufacturer part number on file: EE-1091 (Alfred Conhagen, Inc.).
Key specifications for EE-1091: Keyway Type: RECTANGULAR; Keyway Depth: 0.250 INCHES NOMINAL IN; Design Type: SINGLE WIDTH; Overall Diameter: 6.250 INCHES NOMINAL IN. 10 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.