The Fan,vaneaxial, cataloged under National Stock Number 4140-01-032-3705, 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 Dynamic Air Engineering, Inc.. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-032-3705 |
| Primary Part Number | M5421E1B |
| Item Name | Fan,vaneaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Dynamic Air Engineering, Inc. |
| Status | ACTIVE |
| Length | 8.240 INCHES MAXIMUM IN |
| Housing Inside Diameter | 6.375 INCHES NOMINAL IN |
| Drive Type | DIRECT |
| Quantity | 1 |
| Style Designator | FIXED |
| Diameter | 5.495 INCHES MINIMUM AND 5.515 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND LACQUER BLADE |
| Surface Treatment | CADMIUM AND LACQUER HOUSING OUTSIDE |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| M5421E1B PRIMARY | Dynamic Air Engineering, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 209-073-115-3 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 4140-01-032-3705 is a Fan,vaneaxial, manufactured by Dynamic Air Engineering, Inc., classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-032-3705 has 1 manufacturer part number on file: M5421E1B (Dynamic Air Engineering, Inc.).
Key specifications for M5421E1B: Length: 8.240 INCHES MAXIMUM IN; Housing Inside Diameter: 6.375 INCHES NOMINAL IN; Drive Type: DIRECT; Quantity: 1. 10 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.
NSN 4140-01-032-3705 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.