The Guard,fan Impeller, cataloged under National Stock Number 4140-01-654-6292, 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 Sunon Inc. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 4140-01-654-6292 |
| Primary Part Number | FG-6 |
| Item Name | Guard,fan Impeller |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Sunon Inc |
| Status | ACTIVE |
| Overall Diameter | 60.0 MILLIMETERS NOMINAL MM |
| Mounting Method | HOLE |
| Shape | ROUND |
| Body Material | METAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4140-01-654-6292 is a Guard,fan Impeller, manufactured by Sunon Inc, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-654-6292 has 2 manufacturer part numbers on file: FG-6 (Sunon Inc), N118153 (Lockheed Martin Corporation Div Rms - Manassas).
2 possible matches (shared part number, not a government interchangeability claim): 4140-01-657-7982, 6520-01-702-2363. Verify interchangeability with system specifications before substitution.
Key specifications for FG-6: Overall Diameter: 60.0 MILLIMETERS NOMINAL MM; Mounting Method: HOLE; Shape: ROUND; Body Material: METAL. 4 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.