The Fan,tubeaxial, cataloged under National Stock Number 4140-01-519-5533, 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 Eg and G Rotron Regenerative Blower Opns. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4140-01-519-5533 |
| Primary Part Number | 011973 |
| Item Name | Fan,tubeaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Eg and G Rotron Regenerative Blower Opns |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 BOLT |
| Length | 1.500 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 28.0 DC |
| Flow Direction | INWARD |
| Housing Inside Diameter | 4.500 INCHES NOMINAL IN |
| Style Designator | FIXED |
| Height | 4.690 INCHES NOMINAL IN |
| Operating Speed at Rated Capacity in RPM | 5200.0 |
| Width | 4.690 INCHES NOMINAL IN |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| Electrical Connection Type | LUG |
| 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 |
|---|---|
| 011973 PRIMARY | Eg and G Rotron Regenerative Blower Opns (USA) |
| 569-7067768-879 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 011973000 | 5/2 Secondary reference U.S. Government activity |
| H677-2201-879 | 5/2 Secondary reference U.S. Government activity |
NSN 4140-01-519-5533 is a Fan,tubeaxial, manufactured by Eg and G Rotron Regenerative Blower Opns, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-519-5533 has 2 manufacturer part numbers on file: 011973 (Eg and G Rotron Regenerative Blower Opns), 569-7067768-879 (Naval Sea Systems Command).
Key specifications for 011973: Mounting Facility Type and Quantity: 4 BOLT; Length: 1.500 INCHES NOMINAL IN; Voltage in Volts and Current Type: 28.0 DC; Flow Direction: INWARD. 12 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.