The Fan,tubeaxial, cataloged under National Stock Number 4140-01-234-9998, 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 Ebm Industries Inc Dba Ebm Papst. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4140-01-234-9998 |
| Primary Part Number | 4500N |
| Item Name | Fan,tubeaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Ebm Industries Inc Dba Ebm Papst |
| Status | ACTIVE |
| Shaft Bearing Type | SLEEVE |
| Length | 1.484 INCHES MINIMUM AND 1.516 INCHES MAXIMUM IN |
| Housing Inside Diameter | 4.115 INCHES MINIMUM AND 4.135 INCHES MAXIMUM IN |
| Drive Type | BELT |
| Style Designator | FIXED |
| Height | 4.673 INCHES MINIMUM AND 4.697 INCHES MAXIMUM IN |
| Width | 4.673 INCHES MINIMUM AND 4.697 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY HOUSING |
| Rotation Direction for Which Designed | CLOCKWISE |
| Air Flow Rate | 40.0 CUBIC FEET PER MINUTE MINIMUM AND 47.0 CUBIC FEET PER MINUTE MAXIMUM |
| 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 |
|---|---|
| 4500N | Mjo Industries, Inc. Dba Hughes-Peters Div Hughes Peters (USA) |
| 4500N PRIMARY | Ebm Industries Inc Dba Ebm Papst (USA) |
| Reference | Meaning |
|---|---|
| 4500 | 5/9 Secondary reference Purdy William J Co Interfan Div |
| 4500N | 5/9 Secondary reference Purdy William J Co Interfan Div |
NSN 4140-01-234-9998 is a Fan,tubeaxial, manufactured by Ebm Industries Inc Dba Ebm Papst, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-234-9998 has 2 manufacturer part numbers on file: 4500N (Mjo Industries, Inc. Dba Hughes-Peters Div Hughes Peters), 4500N (Ebm Industries Inc Dba Ebm Papst).
2 possible matches (shared part number, not a government interchangeability claim): 7025-01-500-2787, 7025-01-572-5236. Verify interchangeability with system specifications before substitution.
Key specifications for 4500N: Shaft Bearing Type: SLEEVE; Length: 1.484 INCHES MINIMUM AND 1.516 INCHES MAXIMUM IN; Housing Inside Diameter: 4.115 INCHES MINIMUM AND 4.135 INCHES MAXIMUM IN; Drive Type: BELT. 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.
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.