PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4074-10Hose,air Duct

Flexaust Inc · NSN 4720-00-585-6821 · FSC 4720 · No Item Name Available
Verified by PartsTable
NSN 4720-00-585-6821 — this item is cataloged by the U.S. Government under National Stock Number 4720-00-585-6821. Primary manufacturer part number: 4074-10.
Features
  • Hose,air Duct — FSC 4720
  • Hose Weight: 11.200 OUNCES PER LINEAR FOOT OZ
  • Features Provided: OZONE RESISTANT
  • Inside Diameter: 9.000 INCHES NOMINAL FIRST END IN
  • End Overall Length: 1.500 INCHES NOMINAL FIRST END IN
  • Connection Style: ROUND FIRST END
  • End Inside Diameter: 9.000 INCHES NOMINAL FIRST END IN
  • Operating Pressure: 25.0 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 4720-00-585-6821, 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 Flexaust Inc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4720-00-585-6821
Primary Part Number4074-10
Item NameHose,air Duct
FSC / FSG4720 / 47 — No Item Name Available
ManufacturerFlexaust Inc
StatusACTIVE
Hose Weight11.200 OUNCES PER LINEAR FOOT OZ
Features ProvidedOZONE RESISTANT
Inside Diameter9.000 INCHES NOMINAL FIRST END IN
End Overall Length1.500 INCHES NOMINAL FIRST END IN
Connection StyleROUND FIRST END
End Inside Diameter9.000 INCHES NOMINAL FIRST END IN
Operating Pressure25.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
Measuring Method and Length70.000 INCHES NOMINAL OVERALL IN
Style DesignatorHELICALLY WOUND CONTINOUS WIRE SUPPORTED
Minimum Inside Bending Radius5.000 INCHES IN
Cross-Sectional Shape StyleROUND
Connection TypeSOFT FIRST END
Wall Thickness0.030 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4720-00-585-3879 INTERCHANGEABLE
Hose,air Duct
4720-00-585-38804074-5 INTERCHANGEABLE
Hose,air Duct
Flexaust Inc
2835-00-837-6894407410 INTERCHANGEABLE
Plunger Assembly,va
Woodward, Inc.
5915-01-153-1758407410 INTERCHANGEABLE
Filter
Telemechanics Inc
5998-01-478-5104407410 INTERCHANGEABLE
Circuit Card Assembly
Lockheed Martin Corporation
5895-01-573-4492407410 INTERCHANGEABLE
Multiplexer Subassembly
Astronics Test Systems Inc
Cross-Reference Index
Part NumberManufacturer
L680099-10 Raytheon Company Dba Raytheon Co (USA)
4074-10 PRIMARY Flexaust Inc (USA)
L680099 Raytheon Company Dba Raytheon Co (USA)
SC1X Flexaust Inc (USA)
Related Parts
4720-00-585-3879INTERCHANGEABLE
HOSE,AIR DUCT
4720-00-585-3880INTERCHANGEABLE
HOSE,AIR DUCT
4074-5
2835-00-837-6894INTERCHANGEABLE
PLUNGER ASSEMBLY,VA
407410
5915-01-153-1758INTERCHANGEABLE
FILTER
407410
5998-01-478-5104INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
407410
5895-01-573-4492INTERCHANGEABLE
MULTIPLEXER SUBASSEMBLY
407410

Frequently Asked Questions

What is NSN 4720-00-585-6821?

NSN 4720-00-585-6821 is a Hose,air Duct, manufactured by Flexaust Inc, classified under FSC 4720 (No Item Name Available). Status: active.

What are the part numbers for NSN 4720-00-585-6821?

NSN 4720-00-585-6821 has 4 cross-referenced part numbers: L680099-10 (Raytheon Company Dba Raytheon Co), 4074-10 (Flexaust Inc), L680099 (Raytheon Company Dba Raytheon Co), SC1X (Flexaust Inc).

What NSN replaces 4720-00-585-6821?

There are 6 known substitutes for 4720-00-585-6821: 4720-00-585-3879, 4720-00-585-3880, 2835-00-837-6894 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4074-10?

Key specifications for 4074-10: Hose Weight: 11.200 OUNCES PER LINEAR FOOT OZ; Features Provided: OZONE RESISTANT; Inside Diameter: 9.000 INCHES NOMINAL FIRST END IN; End Overall Length: 1.500 INCHES NOMINAL FIRST END IN. 14 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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