The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-421-1667, 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. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 — Power and Hand Pumps (FSG 43) |
| Manufacturers | M.t. Davidson Company (CAGE 16062) |
| Parameter | Value |
|---|---|
| NSN | 4320-01-421-1667 |
| Primary Part Number | A0NAI-1565 AMX2-9IN. |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | M.t. Davidson Company |
| Status | ACTIVE |
| 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 |
|---|---|
| AONAI-1565 AMX2 | M.t. Davidson Company (USA) |
| A0NAI-1565 AMX2-9IN. PRIMARY | M.t. Davidson Company (USA) |
| GCP-C-888 PIECE 7 | M.t. Davidson Company (USA) |
| Reference | Meaning |
|---|---|
| GCP-C-888 | D/9 Drawing number reference only M.t. Davidson Company |
NSN 4320-01-421-1667 is a Impeller,pump,centrifugal, manufactured by M.t. Davidson Company, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-421-1667 has 3 manufacturer part numbers on file: AONAI-1565 AMX2 (M.t. Davidson Company), A0NAI-1565 AMX2-9IN. (M.t. Davidson Company), GCP-C-888 PIECE 7 (M.t. Davidson Company).
3 possible matches (shared part number, not a government interchangeability claim): 4730-01-448-9842, 4730-01-448-9943, 4820-01-449-0203. Verify interchangeability with system specifications before substitution.
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.