The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-439-3872, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Amron International Inc. Government technical data includes 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-439-3872 |
| Primary Part Number | 9000-1011-8B |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Amron International Inc |
| Status | ACTIVE |
| Design Type | SINGLE WIDTH |
| Blade Quantity | 4 |
| Material | COPPER ALLOY |
| Rotation Direction for Which Designed | CLOCKWISE |
| Blade Type | BACKWARD CURVE |
| 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 |
|---|---|
| 9000-1011-8B PRIMARY | Amron International Inc (USA) |
| Reference | Meaning |
|---|---|
| 9000-A1011 | 5/9 Secondary reference Amron International Inc |
| 9000-A1011-8B | 5/9 Secondary reference Amron International Inc |
| 9000-1011B | C/1 Advisory reference — outside the item-of-supply concept Amron International Inc |
NSN 4320-01-439-3872 is a Impeller,pump,centrifugal, manufactured by Amron International Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-439-3872 has 1 manufacturer part number on file: 9000-1011-8B (Amron International Inc).
2 possible matches (shared part number, not a government interchangeability claim): 4320-01-439-3873, 1650-01-439-4444. Verify interchangeability with system specifications before substitution.
Key specifications for 9000-1011-8B: Design Type: SINGLE WIDTH; Blade Quantity: 4; Special Features: W/MAGNET AND BRONZE BUSHING; End Item Identification: SAFEGUARD CLASS ARS. 5 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.