PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FLX3001-0003Hose,air Duct

Flexfab Llc · NSN 4720-00-684-4816 · FSC 4720 · No Item Name Available
Verified by PartsTable
NSN 4720-00-684-4816 — this item is cataloged by the U.S. Government under National Stock Number 4720-00-684-4816. Primary manufacturer part number: FLX3001-0003.
Features
  • Hose,air Duct — FSC 4720
  • Cross-Sectional Shape Style: ROUND
  • Wall Thickness: 0.070 INCHES NOMINAL IN
  • End Inside Diameter: 2.500 INCHES NOMINAL FIRST END IN
  • Connection Type: SOFT FIRST END
  • Minimum Inside Bending Radius: 0.625 INCHES IN
  • Features Provided: OZONE RESISTANT
  • Operating Pressure: 5.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Hose,air Duct, cataloged under National Stock Number 4720-00-684-4816, is classified within Federal Supply Class 4720 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Flexfab Llc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4720-00-684-4816
Primary Part NumberFLX3001-0003
Item NameHose,air Duct
FSC / FSG4720 / 47 — No Item Name Available
ManufacturerFlexfab Llc
StatusACTIVE
Cross-Sectional Shape StyleROUND
Wall Thickness0.070 INCHES NOMINAL IN
End Inside Diameter2.500 INCHES NOMINAL FIRST END IN
Connection TypeSOFT FIRST END
Minimum Inside Bending Radius0.625 INCHES IN
Features ProvidedOZONE RESISTANT
Operating Pressure5.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
Style DesignatorHELICALLY WOUND CONTINOUS WIRE SUPPORTED
Measuring Method and Length11.125 INCHES NOMINAL OVERALL IN
Inside Diameter2.500 INCHES NOMINAL FIRST END IN
Hose Weight4.400 OUNCES PER LINEAR FOOT OZ
End Overall Length2.000 INCHES NOMINAL FIRST END IN
Connection StyleROUND FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4720-00-080-6002700630-1.50-576 INTERCHANGEABLE
Hose,air Duct
Arrowhead Products Corp
4720-00-212-8713438102-2 INTERCHANGEABLE
Hose,air Duct
Raytheon Company
4720-00-407-6522LS9382-12B21 INTERCHANGEABLE
Hose,air Duct
Royal Engineered Composites, Inc.
4720-01-096-9944FLEXFLYTE U-1 INTERCHANGEABLE
Hose,air Duct
Flexible Technologies Inc
Cross-Reference Index
Part NumberManufacturer
FLX3001-0003 PRIMARY Flexfab Llc (USA)
1339263 PIECE 1 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
FLEXFLYTE U-1 Flexible Technologies Inc (USA)
1339263 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
4720-00-080-6002INTERCHANGEABLE
HOSE,AIR DUCT
700630-1.50-576
4720-00-212-8713INTERCHANGEABLE
HOSE,AIR DUCT
438102-2
4720-00-407-6522INTERCHANGEABLE
HOSE,AIR DUCT
LS9382-12B21
4720-01-096-9944INTERCHANGEABLE
HOSE,AIR DUCT
FLEXFLYTE U-1

Frequently Asked Questions

What is NSN 4720-00-684-4816?

NSN 4720-00-684-4816 is a Hose,air Duct, manufactured by Flexfab Llc, classified under FSC 4720 (No Item Name Available). Status: active.

What are the part numbers for NSN 4720-00-684-4816?

NSN 4720-00-684-4816 has 4 cross-referenced part numbers: FLX3001-0003 (Flexfab Llc), 1339263 PIECE 1 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), FLEXFLYTE U-1 (Flexible Technologies Inc), 1339263 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 4720-00-684-4816?

There are 4 known substitutes for 4720-00-684-4816: 4720-00-080-6002, 4720-00-212-8713, 4720-00-407-6522 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FLX3001-0003?

Key specifications for FLX3001-0003: Cross-Sectional Shape Style: ROUND; Wall Thickness: 0.070 INCHES NOMINAL IN; End Inside Diameter: 2.500 INCHES NOMINAL FIRST END IN; Connection Type: SOFT FIRST END. 13 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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