The Fan Tube Axial, cataloged under National Stock Number 4140-01-331-4239, 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 Kl Industries Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Fan Tube Axial |
| FSC / FSG | 4140 — Fans, Air Circulators, and Blower Equipment (FSG 41) |
| Manufacturers | Kl Industries Inc (CAGE 0BPB0) |
| Parameter | Value |
|---|---|
| NSN | 4140-01-331-4239 |
| Primary Part Number | 028021MU2A1 |
| Item Name | Fan Tube Axial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Kl Industries Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 028021MU2A1 PRIMARY | Kl Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| 028021MU2A1 | 5/9 Secondary reference U.S. Government activity |
NSN 4140-01-331-4239 is a Fan Tube Axial, manufactured by Kl Industries Inc, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-331-4239 has 1 manufacturer part number on file: 028021MU2A1 (Kl Industries Inc).
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.