NSN 4140-01-183-3550 · NIIN 011833550 · Part number 05-254-31
Timken Aerospace, Inc Dba Torrington Product · FSC 4140 — Fans, Air Circulators, and Blower Equipment · FSG 41 — Refrigeration, AC, and Air Circulating Equipment · CAGE 60380
Government record, cited
NSN 4140-01-183-3550 — this item is cataloged by the U.S. Government under National Stock Number 4140-01-183-3550. Manufacturer of record part number: 05-254-31.
Also searched as4140-01-183-3550 ·
4140011833550 ·
NIIN 011833550 ·
01-183-3550 ·
FSC 4140 Fans, Air Circulators, and Blower Equipment · CAGE 60380 · 05-254-31 · 05-254-31-CW
The Impeller,fan,axial, cataloged under National Stock Number 4140-01-183-3550, 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 Timken Aerospace, Inc Dba Torrington Product. Government technical data includes 6 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4140-01-183-3550
Primary Part Number
05-254-31
Item Name
Impeller,fan,axial
FSC / FSG
4140 / 41 — Fans, Air Circulators, and Blower Equipment
Other items in FSC 4140 — Fans, Air Circulators, and Blower Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4140-00-000-0082
IMPELLER,FAN,AXIAL
4140-00-001-1517
FAN,CENTRIFUGAL
4140-00-001-1536
FAN,VENTILATING
4140-00-001-1537
4140-00-001-1537 · Item name not on file
4140-00-001-3930
4140-00-001-3930 · Item name not on file
4140-00-001-6464
4140-00-001-6464 · Item name not on file
4140-00-001-6874
4140-00-001-6874 · Item name not on file
4140-00-001-6875
4140-00-001-6875 · Item name not on file
Frequently Asked Questions
What is NSN 4140-01-183-3550?
NSN 4140-01-183-3550 is a Impeller,fan,axial, manufactured by Timken Aerospace, Inc Dba Torrington Product, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
What part numbers are listed for NSN 4140-01-183-3550?
NSN 4140-01-183-3550 has 2 manufacturer part numbers on file: 05-254-31-CW (Timken Aerospace, Inc Dba Torrington Product), 05-254-31 (Timken Aerospace, Inc Dba Torrington Product).
What are the specifications of 05-254-31?
Key specifications for 05-254-31: Style Designator: ROUNDED TIP; Attachment Method: COMPRESSION; Diameter: 254.0 MILLIMETERS NOMINAL MM; Blade Quantity: 5. 6 specifications are documented in the U.S. Government catalog.
Is NSN 4140-01-183-3550 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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.