PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

259640Elbow,flange to Tube

Eaton Aerospace, Llc Dba Jackson South · NSN 4730-00-775-4219 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-775-4219 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-775-4219. Primary manufacturer part number: 259640.
Features
  • Elbow,flange to Tube — FSC 4730
  • Flange Face Design: RAISED WITH CURVE AND COUNTERBORE SECOND END
  • Nominal Outside Diameter Tube Accommodated: 0.625 INCHES FIRST END IN
  • Material: ALUMINUM ALLOY OVERALL
  • Leg Length: 0.665 INCHES NOMINAL SECOND END IN
  • Nominal Length: 2.937 INCHES SECOND END IN
  • Flange Shape: RECTANGULAR WITH HOLES SECOND END
  • Center to Center Nominal Distance Between Bolt Holes Along Length: 1.687 INCHES SECOND END IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Aluminum Alloy Overall construction
General Description

The Elbow,flange to Tube, cataloged under National Stock Number 4730-00-775-4219, 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 Aerospace, Llc Dba Jackson South. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-775-4219
Primary Part Number259640
Item NameElbow,flange to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerEaton Aerospace, Llc Dba Jackson South
StatusACTIVE
Flange Face DesignRAISED WITH CURVE AND COUNTERBORE SECOND END
Nominal Outside Diameter Tube Accommodated0.625 INCHES FIRST END IN
MaterialALUMINUM ALLOY OVERALL
Leg Length0.665 INCHES NOMINAL SECOND END IN
Nominal Length2.937 INCHES SECOND END IN
Flange ShapeRECTANGULAR WITH HOLES SECOND END
Center to Center Nominal Distance Between Bolt Holes Along Length1.687 INCHES SECOND END IN
Nominal Width2.937 INCHES SECOND END IN
Bolt Hole Nominal Diameter0.281 INCHES SECOND END IN
Raised Face Nominal Diameter1.823 INCHES SECOND END IN
Connection StyleSOCKET (TUBE) FIRST END
Flow Angle90.0 DEGREES
Nominal Thickness0.296 INCHES SECOND END IN
Leg Length1.094 INCHES NOMINAL FIRST END IN
Bolt Hole Quantity4 SECOND END
Center to Center Nominal Distance Between Bolt Holes Along Width1.687 INCHES SECOND END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5133-01-095-6625 INTERCHANGEABLE
Drill,twist
Cross-Reference Index
Part NumberManufacturer
259640 PRIMARY Eaton Aerospace, Llc Dba Jackson South (USA)
213493 Eaton Aerospace, Llc Dba Jackson South (USA)
Related Parts
5133-01-095-6625INTERCHANGEABLE
DRILL,TWIST

Frequently Asked Questions

What is NSN 4730-00-775-4219?

NSN 4730-00-775-4219 is a Elbow,flange to Tube, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-775-4219?

NSN 4730-00-775-4219 has 2 cross-referenced part numbers: 259640 (Eaton Aerospace, Llc Dba Jackson South), 213493 (Eaton Aerospace, Llc Dba Jackson South).

What NSN replaces 4730-00-775-4219?

There is 1 known substitute for 4730-00-775-4219: 5133-01-095-6625. Verify interchangeability with system specifications before substitution.

What are the specifications of 259640?

Key specifications for 259640: Flange Face Design: RAISED WITH CURVE AND COUNTERBORE SECOND END; Nominal Outside Diameter Tube Accommodated: 0.625 INCHES FIRST END IN; Material: ALUMINUM ALLOY OVERALL; Leg Length: 0.665 INCHES NOMINAL SECOND END IN. 16 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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