The Fan,tubeaxial, cataloged under National Stock Number 4140-01-199-3590, 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 Northrop Grumman Support Services Corp. Government technical data includes 8 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-199-3590 |
| Primary Part Number | 645A625H01 |
| Item Name | Fan,tubeaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Northrop Grumman Support Services Corp |
| Status | ACTIVE |
| Length | 1.250 INCHES NOMINAL IN |
| Housing Inside Diameter | 3.064 INCHES NOMINAL IN |
| Drive Type | DIRECT |
| Style Designator | FIXED |
| Material Document and Classification | TT-E-489 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Material | STEEL OVERALL |
| Prime Mover Type | ELECTRIC MOTOR |
| 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 |
|---|---|
| 645A625H01 | Northrop Grumman Support Services Corp (USA) |
| Reference | Meaning |
|---|---|
| 03437400 | 3/2 Design control — primary reference U.S. Government activity |
| 645A625H01 | 5/9 Secondary reference U.S. Government activity |
| 034374 | 5/9 Secondary reference U.S. Government activity |
NSN 4140-01-199-3590 is a Fan,tubeaxial, manufactured by Northrop Grumman Support Services Corp, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-199-3590 has 1 manufacturer part number on file: 645A625H01 (Northrop Grumman Support Services Corp).
Key specifications for 645A625H01: Length: 1.250 INCHES NOMINAL IN; Housing Inside Diameter: 3.064 INCHES NOMINAL IN; Drive Type: DIRECT; Style Designator: FIXED. 8 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.