The Fan,tubeaxial, cataloged under National Stock Number 4140-01-318-9953, 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 16 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-318-9953 |
| Primary Part Number | P0020-24D-3B |
| Item Name | Fan,tubeaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Purdy William J Co Interfan Div |
| Status | ACTIVE |
| Speed Adjustments | SINGLE SPEED |
| Inclosure Type | FULLY INCLOSED |
| Length | 1.250 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 24.0 DC |
| Drive Type | DIRECT |
| Prime Mover Power Rating | 2.0 WATTS |
| Style Designator | FIXED |
| Height | 3.125 INCHES NOMINAL IN |
| Operating Speed at Rated Capacity in RPM | 2250.0 |
| Width | 3.125 INCHES NOMINAL IN |
| Material | PLASTIC POLYCARBONATE OVERALL |
| Prime Mover Type | ELECTRIC MOTOR |
| Prime Mover Drive Shaft Bearing Type | BALL |
| Electrical Connection Type | WIRE LEAD |
| Static Pressure at Specified Air Flow Rate | ERR-060 |
| Air Flow Rate | 20.0 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 |
|---|---|
| P0020-24D-3B PRIMARY | Purdy William J Co Interfan Div (USA) |
NSN 4140-01-318-9953 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 4140-01-318-9953 has 1 manufacturer part number on file: P0020-24D-3B (Purdy William J Co Interfan Div).
Key specifications for P0020-24D-3B: Speed Adjustments: SINGLE SPEED; Inclosure Type: FULLY INCLOSED; Length: 1.250 INCHES NOMINAL IN; Voltage in Volts and Current Type: 24.0 DC. 16 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.