The Guard,fan Impeller, cataloged under National Stock Number 4140-01-072-8326, 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 Cyclops Industries Inc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4140-01-072-8326 |
| Primary Part Number | 6-182-033 |
| Item Name | Guard,fan Impeller |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Cyclops Industries Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 6-182-033 PRIMARY | Cyclops Industries Inc (USA) |
| 6-182-033 | Hd Aero Support, Inc. Dba Hd Aero Support (USA) |
| Reference | Meaning |
|---|---|
| 2610102-002 | 7/2 Vendor item drawing reference Cyberguard Corporation |
| 6-182-033 | 3/9 Design control — primary reference U.S. Government activity |
NSN 4140-01-072-8326 is a Guard,fan Impeller, manufactured by Cyclops Industries Inc, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-072-8326 has 2 manufacturer part numbers on file: 6-182-033 (Cyclops Industries Inc), 6-182-033 (Hd Aero Support, Inc. Dba Hd Aero Support).
1 possible match (shared part number, not a government interchangeability claim): 4140-01-096-5722. Verify interchangeability with system specifications before substitution.
Key specifications for 6-182-033: Special Features: FLAT CONCENTRIC RING DESIGN;6 RINGS;0.25 IN.SPACING BETWEEN RINGS;4.40 IN.DIA OF LARGEST RING;FRAMING MEMBERS MTD TO PROVIDE 4 MTG LEGS W/0.19 IN.DIA LOOP END;4.12 IN. SQ MTG CENTERS;RINGS AND FRAMING MEMBERS STEEL WIRE;WELDED CONSTRUCTION CHROME PLATED;MEETS UL 1/4 IN.PLUG GAGE; IN. 0 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.