The Fan,circulating, cataloged under National Stock Number 4140-01-503-5643, 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 Kl Industries Inc. Government technical data includes 14 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4140-01-503-5643 |
| Primary Part Number | 032768 |
| Item Name | Fan,circulating |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Kl Industries Inc |
| Status | ACTIVE |
| Speed Adjustments | SINGLE SPEED |
| Phase | SINGLE |
| Inclosure Type | GUARDED AND PARTIALLY INCLOSED |
| Length | 1.000 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 24.0 DC |
| Drive Type | DIRECT |
| Style Designator | FIXED |
| Ambient Temp at Full Rated Power | -10.0 CELSIUS AND 70.0 CELSIUS DEGC |
| Height | 3.620 INCHES NOMINAL IN |
| Operating Speed at Rated Capacity in RPM | 2800.0 |
| Width | 3.620 INCHES NOMINAL IN |
| Material | PLASTIC BLADE |
| Rotation Direction for Which Designed | CLOCKWISE |
| Prime Mover Drive Shaft Bearing Type | BALL |
| 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 |
|---|---|
| 032768 PRIMARY | Kl Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| FN24B3 FLT II S ERIES 90 031169 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 5614191 | 3/9 Design control — primary reference Comair Rotron Inc Sub of Kl Industries Inc |
| 5614191 | 5/9 Secondary reference Kl Industries Inc |
| 5614191 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| FN24B3 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 4140-01-503-5643 is a Fan,circulating, manufactured by Kl Industries Inc, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-503-5643 has 1 manufacturer part number on file: 032768 (Kl Industries Inc).
1 possible match (shared part number, not a government interchangeability claim): 6515-01-517-3237. Verify interchangeability with system specifications before substitution.
Key specifications for 032768: Speed Adjustments: SINGLE SPEED; Phase: SINGLE; Inclosure Type: GUARDED AND PARTIALLY INCLOSED; Length: 1.000 INCHES NOMINAL IN. 14 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.