The Impeller,fan,axial, cataloged under National Stock Number 4140-01-261-7953, is classified within Federal Supply Class 4140 (Fans, Air Circulators, and Blower Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Thorgren Tool and Molding Co Inc. Government technical data includes 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-261-7953 |
| Primary Part Number | 4C2185C1 |
| Item Name | Impeller,fan,axial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Thorgren Tool and Molding Co Inc |
| Status | ACTIVE |
| Diameter | 4.000 INCHES NOMINAL IN |
| Blade Quantity | 5 |
| Material | PLASTIC OVERALL |
| 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 |
|---|---|
| 4C2185C1 PRIMARY | Thorgren Tool and Molding Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 99190 | 5/9 Secondary reference Bailey Refrigeration Co, Inc. |
| 99190 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 4140-01-261-7953 is a Impeller,fan,axial, manufactured by Thorgren Tool and Molding Co Inc, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-261-7953 has 1 manufacturer part number on file: 4C2185C1 (Thorgren Tool and Molding Co Inc).
Key specifications for 4C2185C1: Diameter: 4.000 INCHES NOMINAL IN; Blade Quantity: 5; Material: PLASTIC OVERALL; Rotation Direction for Which Designed: CLOCKWISE. 4 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.