The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-438-7176, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is M.t. Davidson Company. Government technical data includes 8 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4320-01-438-7176 |
| Primary Part Number | AONI-2565A-AX2CN |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | M.t. Davidson Company |
| Status | ACTIVE |
| Design Type | SINGLE WIDTH |
| Overall Diameter | 7.250 INCHES NOMINAL IN |
| Mounting Method | KEY |
| Keyway Quantity | 1 |
| Hub Quantity | 2 |
| Hub Location | CENTERED |
| Material | COPPER 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 |
|---|---|
| AONI-2565A-AX2CN PRIMARY | M.t. Davidson Company (USA) |
| Reference | Meaning |
|---|---|
| GCP-815 REV D PIECE NO.7 | 5/9 Secondary reference Multi Med Industries Inc |
| GCP-814 REV J | D/9 Drawing number reference only M.t. Davidson Company |
| GCP-815 REV D | D/9 Drawing number reference only M.t. Davidson Company |
NSN 4320-01-438-7176 is a Impeller,pump,centrifugal, manufactured by M.t. Davidson Company, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-438-7176 has 1 manufacturer part number on file: AONI-2565A-AX2CN (M.t. Davidson Company).
Key specifications for AONI-2565A-AX2CN: Design Type: SINGLE WIDTH; Overall Diameter: 7.250 INCHES NOMINAL IN; Mounting Method: KEY; Keyway Quantity: 1. 8 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.