NSN 4140-01-125-2906 · NIIN 011252906 · Part number 74A830721-1017
The Boeing Company Div Defense · FSC 4140 — Fans, Air Circulators, and Blower Equipment · FSG 41 — Refrigeration, AC, and Air Circulating Equipment · CAGE 76301
Government record, cited
NSN 4140-01-125-2906 — this item is cataloged by the U.S. Government under National Stock Number 4140-01-125-2906. Manufacturer of record part number: 74A830721-1017.
Also searched as4140-01-125-2906 ·
4140011252906 ·
NIIN 011252906 ·
01-125-2906 ·
FSC 4140 Fans, Air Circulators, and Blower Equipment · CAGE 76301 · 74A830721-1017 · 74A830721-1015
Manufacturer of record: The Boeing Company Div Defense
Identification
NSN: 4140-01-125-2906
NIIN: 011252906
FSC: 4140 — Fans, Air Circulators, and Blower Equipment
FSG: 41 — Refrigeration, AC, and Air Circulating Equipment
Primary part number: 74A830721-1017
Manufacturer: The Boeing Company Div Defense
General Description
The Cover,dust,defog Duct, cataloged under National Stock Number 4140-01-125-2906, 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 The Boeing Company Div Defense. 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
4140-01-125-2906
Primary Part Number
74A830721-1017
Item Name
Cover,dust,defog Duct
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 4140-01-125-2906?
NSN 4140-01-125-2906 is a Cover,dust,defog Duct, manufactured by The Boeing Company Div Defense, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
What part numbers are listed for NSN 4140-01-125-2906?
NSN 4140-01-125-2906 has 2 manufacturer part numbers on file: 74A830721-1015 (The Boeing Company Div Defense), 74A830721-1017 (The Boeing Company Div Defense).
What are the specifications of 74A830721-1017?
Key specifications for 74A830721-1017: End Item Identification: ACFT MODEL F-18. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4140-01-125-2906 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.
What is the DEMIL code for NSN 4140-01-125-2906?
NSN 4140-01-125-2906 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.