The Fan,tubeaxial, cataloged under National Stock Number 4140-01-004-0566, is classified within Federal Supply Class 4140 (Fans, Air Circulators, and Blower Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-004-0566 |
| Item Name | Fan,tubeaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| CP-20 | 3/9 Design control — primary reference Tuthill Corporation Div Coppus Portable Ventilation Division |
NSN 4140-01-004-0566 is a Fan,tubeaxial, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
4 possible matches (shared part number, not a government interchangeability claim): 3432-01-210-9939, 4730-01-289-5749, 5315-01-420-5121. Verify interchangeability with system specifications before substitution.
Key specifications for 4140-01-004-0566: Special Features: IDENTICAL INLET AND OUTLET FLANGES ALLOW THE UNIT TO BE POSITIONED FOR USE AS A BLOWER OR AN EXHAUSTER, HAS STAINLESS STEEL TURBINE BUCKETS MOUNTED ONTO A MACHINED MOUNTING RING LOCATED ON THE OUTER DIAMETER OF THE ROTATING ELEMENT. INCOMING STEAM OR COMPRESSED AIR IMPINGE ON TURBINE BUCKETS AND PROPER THE UNIT IN OPERATION, IT HAS SIX BLADES; End Item Identification: DESIGNED TO COOL/VENTILATE LARGE TANKS OR VESSELS. 0 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.