The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-283-3910, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Ebara Mfg Co.. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-283-3910 |
| Primary Part Number | CFSS1-20-11 |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Ebara Mfg Co. |
| Status | ACTIVE |
| Overall Diameter | 161.0 MILLIMETERS NOMINAL MM |
| Material | STEEL CORROSION RESISTING |
| Rotation Direction for Which Designed | CLOCKWISE |
| 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 |
|---|---|
| S2-8504 PIECE 021 | Ebara Mfg Co. (JPN) |
| CFSS1-20-11 PRIMARY | Ebara Mfg Co. (JPN) |
| Reference | Meaning |
|---|---|
| S2-8504 PIECE 021 | 5/9 Secondary reference Ebara Mfg Co. |
| CFSS1-20-11 | 3/9 Design control — primary reference Ebara Mfg Co. |
NSN 4320-01-283-3910 is a Impeller,pump,centrifugal, manufactured by Ebara Mfg Co., classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-283-3910 has 2 manufacturer part numbers on file: S2-8504 PIECE 021 (Ebara Mfg Co.), CFSS1-20-11 (Ebara Mfg Co.).
Key specifications for CFSS1-20-11: Overall Diameter: 161.0 MILLIMETERS NOMINAL MM; Material: STEEL CORROSION RESISTING; Rotation Direction for Which Designed: CLOCKWISE. 3 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.