PartsTable TECHNICAL DATA SHEET
Download PDF
NSN 4140-01-334-3784Government record, cited
Home › MRO › Refrigeration, AC, and Air Circulating Equipment › 4140-01-334-3784

Impeller, Fan, Centrifugal4140-01-334-3784

NSN 4140-01-334-3784 · NIIN 013343784
FSC 4140 — Fans, Air Circulators, and Blower Equipment · FSG 41 — Refrigeration, AC, and Air Circulating Equipment
Government record, cited
Also searched as  4140-01-334-3784 · 4140013343784 · NIIN 013343784 · 01-334-3784 · FSC 4140 Fans, Air Circulators, and Blower Equipment
Nearby stock numbers  ·
Features
  • Impeller,fan,centrifugal — FSC 4140
  • Style Designator: CURVED BLADES SINGLE WIDTH
  • Diameter: 4.250 INCHES NOMINAL IN
  • Width: 3.438 INCHES NOMINAL IN
Identification
  • NSN: 4140-01-334-3784
  • NIIN: 013343784
  • FSC: 4140 — Fans, Air Circulators, and Blower Equipment
  • FSG: 41 — Refrigeration, AC, and Air Circulating Equipment
General Description

The Impeller,fan,centrifugal, cataloged under National Stock Number 4140-01-334-3784, 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 3 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.

Technical Specifications
ParameterValue
NSN4140-01-334-3784
Item NameImpeller,fan,centrifugal
FSC / FSG4140 / 41 — Fans, Air Circulators, and Blower Equipment
StatusACTIVE
Style DesignatorCURVED BLADES SINGLE WIDTH
Diameter4.250 INCHES NOMINAL IN
Width3.438 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 1
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3110-01-498-47772459 POSSIBLE MATCH
ROLLER,BEARING
Possible match (shared part number)Amw Cuyuna Engine Co. Inc Dba Two Stroke International
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
ReferenceMeaning
2459 3/9 Design control — primary reference
R.w. Beckett Corporation Div Beckett Energy Systems
Related Parts
3110-01-498-4777POSSIBLE MATCH
ROLLER,BEARING
2459

Frequently Asked Questions

What is NSN 4140-01-334-3784?

NSN 4140-01-334-3784 is a Impeller,fan,centrifugal, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.

What NSN replaces 4140-01-334-3784?

1 possible match (shared part number, not a government interchangeability claim): 3110-01-498-4777. Verify interchangeability with system specifications before substitution.

What are the specifications of 4140-01-334-3784?

Key specifications for 4140-01-334-3784: Style Designator: CURVED BLADES SINGLE WIDTH; Diameter: 4.250 INCHES NOMINAL IN; Width: 3.438 INCHES NOMINAL IN. 3 specifications are documented in the U.S. Government catalog.

Is NSN 4140-01-334-3784 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

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.

PartsTable — the parts reference. Every fact cited to its source.
partstable.com/parts/4140-01-334-3784
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
PartsTable Design LLC · partstable.com
partstable.com · © 2026 PartsTable. Data for reference only.
Home · MRO Catalog · Refrigeration, AC, and Air Circulating Equipment