The Impeller,fan,centrifugal, cataloged under National Stock Number 4140-00-139-4459, 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 Dcm Manufacturing, Inc.. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-00-139-4459 |
| Primary Part Number | B2615 |
| Item Name | Impeller,fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Dcm Manufacturing, Inc. |
| Status | ACTIVE |
| Style Designator | STRAIGHT BLADES SINGLE WIDTH |
| Attachment Method | SETSCREW |
| Diameter | 3.970 INCHES NOMINAL IN |
| Blade Quantity | 18 |
| Width | 0.650 INCHES NOMINAL IN |
| Material | ALUMINUM 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 |
|---|---|
| B2615 PRIMARY | Dcm Manufacturing, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 2AL226 | 5/9 Secondary reference Oshkosh Corp |
| B2615 | 5/9 Secondary reference Benmar Heater Div Stacee Mfg Inc |
NSN 4140-00-139-4459 is a Impeller,fan,centrifugal, manufactured by Dcm Manufacturing, Inc., classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-00-139-4459 has 1 manufacturer part number on file: B2615 (Dcm Manufacturing, Inc.).
Key specifications for B2615: Style Designator: STRAIGHT BLADES SINGLE WIDTH; Attachment Method: SETSCREW; Diameter: 3.970 INCHES NOMINAL IN; Blade Quantity: 18. 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.