The Guard,fan Impeller, cataloged under National Stock Number 4140-01-477-2499, 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 Kohler Co.. Government technical data includes 5 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 | 4140-01-477-2499 |
| Primary Part Number | 225620 |
| Item Name | Guard,fan Impeller |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Kohler Co. |
| Status | ACTIVE |
| Mounting Method | SPRING CLIP |
| Shape | RECTANGULAR |
| Mounting Hardware and Quantity | CLIPS WELDED W/ WELDNUT,2 |
| Body Material | STEEL |
| Surface Treatment | ZINC |
| 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 |
|---|---|
| 225620 PRIMARY | Kohler Co. (USA) |
NSN 4140-01-477-2499 is a Guard,fan Impeller, manufactured by Kohler Co., classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-477-2499 has 1 manufacturer part number on file: 225620 (Kohler Co.).
Key specifications for 225620: Mounting Method: SPRING CLIP; Shape: RECTANGULAR; Overall Length: 8.190 INCHES MINIMUM AND 8.310 INCHES MAXIMUM IN; Overall Width: 3.350 INCHES MINIMUM AND 3.470 INCHES MAXIMUM IN. 5 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.