The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-00-139-4239, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-139-4239 |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Status | ACTIVE |
| Keyway Type | RECTANGULAR |
| Keyway Depth | 1.062 INCHES NOMINAL IN |
| Design Type | SINGLE WIDTH |
| Overall Diameter | 5.600 INCHES MINIMUM AND 5.605 INCHES MAXIMUM IN |
| Mounting Method | KEY |
| Material Document and Classification | ASTM B143, ALLOY 1A ASSN STD SINGLE MATERIAL RESPONSE A |
| Keyway Quantity | 1 |
| Blade Quantity | 5 |
| Keyway Length | 0.188 INCHES NOMINAL IN |
| Keyway Width | 0.094 INCHES NOMINAL IN |
| Material | COPPER ALLOY 905 |
| Rotation Direction for Which Designed | CLOCKWISE |
| Blade Type | FORWARD CURVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 192-07523-201 | 3/9 Design control — primary reference Aqua-Chem, Inc. |
| 192-7523-4-375 | 5/9 Secondary reference Aqua-Chem, Inc. |
| 192-07523-000 | 5/1 Secondary reference Aqua-Chem, Inc. |
| 192-07523-000-4.375IN | 5/9 Secondary reference Aqua-Chem, Inc. |
NSN 4320-00-139-4239 is a Impeller,pump,centrifugal, classified under FSC 4320, Power and Hand Pumps. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4320-00-928-2443. Verify interchangeability with system specifications before substitution.
Key specifications for 4320-00-139-4239: Keyway Type: RECTANGULAR; Keyway Depth: 1.062 INCHES NOMINAL IN; Design Type: SINGLE WIDTH; Overall Diameter: 5.600 INCHES MINIMUM AND 5.605 INCHES MAXIMUM 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.