The Impeller,fan,axial, cataloged under National Stock Number 4140-00-004-9950, 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 Ontic Engineering & Manufacturing, Inc Dba Ontic Us. Government technical data includes 7 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-00-004-9950 |
| Primary Part Number | 82D75-1 |
| Item Name | Impeller,fan,axial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| Status | ACTIVE |
| Style Designator | STRAIGHT TIP |
| Attachment Method | KEYWAY |
| Diameter | 8.460 INCHES NOMINAL IN |
| Blade Quantity | 3 |
| Hub Location | BACK |
| Material | ALUMINUM OVERALL |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 82D75-1 PRIMARY | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| Reference | Meaning |
|---|---|
| 82D75-1 | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell International |
| 77D60-1 | 5/9 Secondary reference Grimes Aerospace Company |
| 82D75-1 | 5/9 Secondary reference Grimes Aerospace Company |
NSN 4140-00-004-9950 is a Impeller,fan,axial, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-00-004-9950 has 1 manufacturer part number on file: 82D75-1 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).
Key specifications for 82D75-1: Style Designator: STRAIGHT TIP; Attachment Method: KEYWAY; Diameter: 8.460 INCHES NOMINAL IN; Blade Quantity: 3. 7 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.
NSN 4140-00-004-9950 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.