PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

401819-1Adapter,straight,flange to Tube

Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution · NSN 4730-01-270-0424 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-270-0424 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-270-0424. Primary manufacturer part number: 401819-1.
Features
  • Adapter,straight,flange to Tube — FSC 4730
  • Surface Treatment Document and Classification: MIL-A-8625,TYPE 2,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Nominal Thickness: 0.220 INCHES SECOND END IN
  • Thread Class: 2A FIRST END A
  • Material: ALUMINUM ALLOY 2024 OVERALL
  • Connection Type: THREADED EXTERNAL TUBE FIRST END
  • Thread Quantity Per Inch: 16 FIRST END
  • Center to Center Nominal Distance Between Bolt Holes Along Length: 2.375 INCHES SECOND END IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Aluminum Alloy 2024 Overall construction
General Description

The Adapter,straight,flange to Tube, cataloged under National Stock Number 4730-01-270-0424, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-270-0424
Primary Part Number401819-1
Item NameAdapter,straight,flange to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerEaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
StatusACTIVE
Surface Treatment Document and ClassificationMIL-A-8625,TYPE 2,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Nominal Thickness0.220 INCHES SECOND END IN
Thread Class2A FIRST END A
MaterialALUMINUM ALLOY 2024 OVERALL
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Thread Quantity Per Inch16 FIRST END
Center to Center Nominal Distance Between Bolt Holes Along Length2.375 INCHES SECOND END IN
Nominal Overall Length1.420 INCHES IN
Flange ShapeRECTANGULAR WITH HOLES SECOND END
Nominal Outside Diameter Tube Accommodated2.000 INCHES FIRST END IN
Bolt Hole Quantity4 SECOND END
Thread Series DesignatorUN FIRST END
Nominal Thread Size2.500 INCHES FIRST END IN
Connection StylePLAIN (TUBE) FIRST END
Nominal Width3.000 INCHES SECOND END IN
Flange Face DesignPLAIN SECOND END
Nominal Length3.000 INCHES SECOND END IN
Surface TreatmentANODIZE OVERALL
Surface Treatment Document and ClassificationMIL-A-8625,TYPE 2,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALLUNABLE TO DECODE
Connection TypeFLANGE SECOND END
Bolt Hole Nominal Diameter0.328 INCHES SECOND END IN
Center to Center Nominal Distance Between Bolt Holes Along Width2.375 INCHES SECOND END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5365-00-070-4156 INTERCHANGEABLE
Shim
5935-00-107-1283 INTERCHANGEABLE
Connector,plug,electrical
5307-00-264-247140819S INTERCHANGEABLE
Stud,plain
Renk America Llc Div Renk America
2915-00-608-4098401819 INTERCHANGEABLE
Stem,speed Valve Pl
Woodward, Inc. Div Fuel Systems and Controls
5998-01-279-7159401819 INTERCHANGEABLE
Circuit Card Assembly
Astronics Test Systems Inc
Cross-Reference Index
Part NumberManufacturer
401819-1 PRIMARY Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA)
401819 Eaton Aviation Corporation (USA)
401819-1 Eaton Aviation Corporation (USA)
Related Parts
5365-00-070-4156INTERCHANGEABLE
SHIM
5935-00-107-1283INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
5307-00-264-2471INTERCHANGEABLE
STUD,PLAIN
40819S
2915-00-608-4098INTERCHANGEABLE
STEM,SPEED VALVE PL
401819
5998-01-279-7159INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
401819

Frequently Asked Questions

What is NSN 4730-01-270-0424?

NSN 4730-01-270-0424 is a Adapter,straight,flange to Tube, manufactured by Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-270-0424?

NSN 4730-01-270-0424 has 3 cross-referenced part numbers: 401819-1 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution), 401819 (Eaton Aviation Corporation), 401819-1 (Eaton Aviation Corporation).

What NSN replaces 4730-01-270-0424?

There are 5 known substitutes for 4730-01-270-0424: 5365-00-070-4156, 5935-00-107-1283, 5307-00-264-2471 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 401819-1?

Key specifications for 401819-1: Surface Treatment Document and Classification: MIL-A-8625,TYPE 2,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Nominal Thickness: 0.220 INCHES SECOND END IN; Thread Class: 2A FIRST END A; Material: ALUMINUM ALLOY 2024 OVERALL. 22 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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