The Fan,circulating, cataloged under National Stock Number 4140-00-255-7799, is classified within Federal Supply Class 4140 (Fans, Air Circulators, and Blower Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 4140-00-255-7799 |
| Item Name | Fan,circulating |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Status | ACTIVE |
| Speed Adjustments | TWO SPEED |
| Phase | SINGLE |
| Frequency in Hertz | 60.0 |
| Inclosure Type | FULLY INCLOSED |
| Voltage in Volts and Current Type | 115.0 AC |
| Drive Type | DIRECT |
| Prime Mover Power Rating | 67.0 WATTS |
| Diameter | 12.000 INCHES NOMINAL IN |
| Features Provided | SAFETY IMPELLER GUARD |
| Nondefinitive Spec/std Data | TA12 TYPE AND 1 CLASS |
| Material | STEEL OVERALL |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | CLOCKWISE |
| Prime Mover Drive Shaft Bearing Type | BALL OR SLEEVE |
| Electrical Connection Type | WIRE LEAD |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 4140PL1215450 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| CLASS 1 TA12 MAGNETIC | 2/2 Government specification standardization U.S. Government activity |
| TA12 MAGNETIC | 5/9 Secondary reference Sunbeam Corp Phil Rich Fan Div |
| MIL-DTL-68 | 4/1 Identification reference U.S. Government activity |
| TA12 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 41210 MAGNETIC | 5/1 Secondary reference Penn Metal Fabricators Inc |
| MIL-DTL-68G | 5/1 Secondary reference Vidmark Distribution Inc |
NSN 4140-00-255-7799 is a Fan,circulating, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
5 possible matches (shared part number, not a government interchangeability claim): 5950-00-445-2658, 5950-00-931-3739, 5130-01-337-5582. Verify interchangeability with system specifications before substitution.
Key specifications for 4140-00-255-7799: Speed Adjustments: TWO SPEED; Phase: SINGLE; Frequency in Hertz: 60.0; Inclosure Type: FULLY INCLOSED. 15 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.