The Fan,tubeaxial, cataloged under National Stock Number 4140-01-370-7944, 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 Purdy William J Co Interfan Div. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4140-01-370-7944 |
| Primary Part Number | PM106-24D-4B-7 |
| Item Name | Fan,tubeaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Purdy William J Co Interfan Div |
| Status | ACTIVE |
| Length | 1.500 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 24.0 DC |
| Style Designator | FIXED |
| Height | 4.688 INCHES NOMINAL IN |
| Operating Speed at Rated Capacity in RPM | 3100.0 |
| Width | 4.688 INCHES NOMINAL IN |
| Material | ALUMINUM HOUSING |
| Material | PLASTIC POLYCARBONATE BLADE |
| Prime Mover Type | ELECTRIC MOTOR |
| 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 |
|---|---|
| PM106-24D-4B-7 PRIMARY | Purdy William J Co Interfan Div (USA) |
| Reference | Meaning |
|---|---|
| PM106-24D-4BT | 5/9 Secondary reference Purdy William J Co Interfan Div |
NSN 4140-01-370-7944 is a Fan,tubeaxial, manufactured by Purdy William J Co Interfan Div, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-370-7944 has 1 manufacturer part number on file: PM106-24D-4B-7 (Purdy William J Co Interfan Div).
1 possible match (shared part number, not a government interchangeability claim): 4140-01-484-3514. Verify interchangeability with system specifications before substitution.
Key specifications for PM106-24D-4B-7: Length: 1.500 INCHES NOMINAL IN; Voltage in Volts and Current Type: 24.0 DC; Style Designator: FIXED; Height: 4.688 INCHES NOMINAL IN. 9 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.