The Fan,circulating, cataloged under National Stock Number 4140-00-262-9921, 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 Westinghouse Electric Corp. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4140-00-262-9921 |
| Primary Part Number | Y29405 |
| Item Name | Fan,circulating |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Speed Adjustments | TWO SPEED |
| Phase | SINGLE |
| Frequency in Hertz | 60.0 |
| Voltage in Volts and Current Type | 115.0 AC |
| Quantity | 1 |
| Diameter | 12.000 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | TA12 TYPE AND 2 CLASS |
| 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 |
|---|---|
| Y29405 PRIMARY | Westinghouse Electric Corp (USA) |
| 1JH394 PRIMARY | Westinghouse Electric Corp (USA) |
| ES1008 PRIMARY | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| ES1008 | 5/9 Secondary reference U.S. Government activity |
| Y29405 | 5/9 Secondary reference U.S. Government activity |
| MILF68TYPETA12CLASS2 | 4/1 Identification reference U.S. Government activity |
| 1JH394 | 5/9 Secondary reference U.S. Government activity |
NSN 4140-00-262-9921 is a Fan,circulating, manufactured by Westinghouse Electric Corp, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-00-262-9921 has 3 manufacturer part numbers on file: Y29405 (Westinghouse Electric Corp), 1JH394 (Westinghouse Electric Corp), ES1008 (Westinghouse Electric Corp).
2 possible matches (shared part number, not a government interchangeability claim): 5998-01-587-5118, 5985-01-615-0121. Verify interchangeability with system specifications before substitution.
Key specifications for Y29405: Speed Adjustments: TWO SPEED; Phase: SINGLE; Frequency in Hertz: 60.0; Voltage in Volts and Current Type: 115.0 AC. 8 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.