The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-022-1695, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Triumph Engine Control Systems Llc. Government technical data includes 11 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-022-1695 |
| Primary Part Number | 99425 |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Triumph Engine Control Systems Llc |
| Status | ACTIVE |
| Hub Bore Diameter | 0.5500 INCHES MINIMUM AND 0.8754 INCHES MAXIMUM IN |
| Hub Length | 0.453 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN |
| Design Type | SINGLE WIDTH |
| Overall Diameter | 5.137 INCHES MINIMUM AND 5.143 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5642 ASSN STD SINGLE MATERIAL RESPONSE |
| Blade Quantity | 14 |
| Hub Quantity | 2 |
| Hub Location | BACK SIDE AND FRONT SIDE |
| Material | STEEL CORROSION RESISTING |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| Blade Type | STRAIGHT |
| 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 |
|---|---|
| 99425 PRIMARY | Triumph Engine Control Systems Llc (USA) |
NSN 4320-01-022-1695 is a Impeller,pump,centrifugal, manufactured by Triumph Engine Control Systems Llc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-022-1695 has 1 manufacturer part number on file: 99425 (Triumph Engine Control Systems Llc).
Key specifications for 99425: Hub Bore Diameter: 0.5500 INCHES MINIMUM AND 0.8754 INCHES MAXIMUM IN; Hub Length: 0.453 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN; Design Type: SINGLE WIDTH; Overall Diameter: 5.137 INCHES MINIMUM AND 5.143 INCHES MAXIMUM IN. 11 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.