The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-135-1583, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4320-01-135-1583 |
| Primary Part Number | 20369 |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division |
| Status | ACTIVE |
| Design Type | SINGLE WIDTH |
| Overall Diameter | 2.285 INCHES NOMINAL IN |
| Blade Quantity | 10 |
| Surface Treatment | ANODIZE |
| Material | ALUMINUM ALLOY |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 20369 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division (USA) |
| Reference | Meaning |
|---|---|
| 20369 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4320-01-135-1583 is a Impeller,pump,centrifugal, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-135-1583 has 1 manufacturer part number on file: 20369 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division).
4 possible matches (shared part number, not a government interchangeability claim): 4720-01-171-7376, 5315-01-221-1786, 5962-01-232-1398. Verify interchangeability with system specifications before substitution.
Key specifications for 20369: Design Type: SINGLE WIDTH; Overall Diameter: 2.285 INCHES NOMINAL IN; Overall Width: 2.285 INCHES NOMINAL IN; Blade Quantity: 10. 7 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.