The Fan,vaneaxial, cataloged under National Stock Number 4140-01-264-7459, 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 Fm Af, Llc Dba American Fan Company. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4140-01-264-7459 |
| Primary Part Number | E1-7492-2/MAS48C7 |
| Item Name | Fan,vaneaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Fm Af, Llc Dba American Fan Company |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 52 UNTHREADED HOLE(S) |
| Speed Adjustments | TWO SPEED |
| Phase | THREE |
| Frequency in Hertz | 60.0 |
| Inclosure Type | FULLY INCLOSED |
| Length | 53.500 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 440.0 AC |
| Flow Direction | INWARD |
| Housing Inside Diameter | 48.312 INCHES NOMINAL IN |
| Style Designator | FIXED |
| Material Document and Classification | ASTM A36 ASSN STD SINGLE MATERIAL RESPONSE HOUSING |
| Operating Speed at Rated Capacity in RPM | 875.0 AND 1750.0 |
| Surface Treatment | CHROMATE ZINC OR PRIMER HOUSING INSIDE |
| Surface Treatment | CHROMATE ZINC OR PRIMER HOUSING OUTSIDE |
| Material | STEEL HOUSING |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | CLOCKWISE |
| Electrical Connection Type | TERMINAL BOX |
| Air Flow Rate | 30625.0 CUBIC FEET PER MINUTE NOMINAL AND 61250.0 CUBIC FEET PER MINUTE NOMINAL |
| 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 |
|---|---|
| E1-7492-2/MAS48C7 PRIMARY | Fm Af, Llc Dba American Fan Company (USA) |
| Reference | Meaning |
|---|---|
| E1-7492-2/MAS48C7 | 5/9 Secondary reference New Philadelphia Fan Co Buffalo Forge Marine Fans |
NSN 4140-01-264-7459 is a Fan,vaneaxial, manufactured by Fm Af, Llc Dba American Fan Company, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-264-7459 has 1 manufacturer part number on file: E1-7492-2/MAS48C7 (Fm Af, Llc Dba American Fan Company).
Key specifications for E1-7492-2/MAS48C7: Mounting Facility Type and Quantity: 52 UNTHREADED HOLE(S); Speed Adjustments: TWO SPEED; Phase: THREE; Frequency in Hertz: 60.0. 19 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.