The Fan,tubeaxial, cataloged under National Stock Number 4140-00-150-1195, 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 21 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-00-150-1195 |
| Primary Part Number | 2550S |
| Item Name | Fan,tubeaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Ebm Industries Inc Dba Ebm Papst |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 2 FLANGE |
| Speed Adjustments | SINGLE SPEED |
| Phase | SINGLE |
| Frequency in Hertz | 60.0 |
| Inclosure Type | FULLY INCLOSED |
| Length | 1.970 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 230.0 AC |
| Flow Direction | OUTWARD |
| Housing Inside Diameter | 4.000 INCHES NOMINAL IN |
| Drive Type | DIRECT |
| Prime Mover Power Rating | 28.0 WATTS |
| Style Designator | FIXED |
| Ambient Temp at Full Rated Power | -10.0 CELSIUS AND 55.0 CELSIUS DEGC |
| Operating Speed at Rated Capacity in RPM | 3250.0 |
| Material | STEEL BLADE |
| Material | ALUMINUM HOUSING |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| Prime Mover Drive Shaft Bearing Type | SLEEVE |
| Electrical Connection Type | WIRE LEAD |
| Air Flow Rate | 115.0 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 |
|---|---|
| 2550S PRIMARY | Ebm Industries Inc Dba Ebm Papst (USA) |
| Reference | Meaning |
|---|---|
| 2550 | 5/9 Secondary reference Purdy William J Co Interfan Div |
| 2550S | 5/9 Secondary reference Purdy William J Co Interfan Div |
NSN 4140-00-150-1195 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 4140-00-150-1195 has 1 manufacturer part number on file: 2550S (Ebm Industries Inc Dba Ebm Papst).
1 possible match (shared part number, not a government interchangeability claim): 5935-01-371-2781. Verify interchangeability with system specifications before substitution.
Key specifications for 2550S: Mounting Facility Type and Quantity: 2 FLANGE; Speed Adjustments: SINGLE SPEED; Phase: SINGLE; Frequency in Hertz: 60.0. 21 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.