PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2BTX-BNut,tube Coupling

Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division · NSN 4730-01-435-4710 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-435-4710 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-435-4710. Primary manufacturer part number: 2BTX-B.
Features
  • Nut,tube Coupling — FSC 4730
  • Material: COPPER ALLOY OVERALL
  • Reference Number Differentiating Characteristics: SPECIAL CLEANING AND PACKAGING
  • Nominal Thread Size: 0.312 INCHES IN
  • Width Across Flats: 0.375 INCHES NOMINAL IN
  • Thread Series: UNF
  • Criticality Code Justification: ZZZY
  • Fabrication Method: MACHINED
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Fluid conveyance
  • Hydraulic system plumbing
General Description

The Nut,tube Coupling, cataloged under National Stock Number 4730-01-435-4710, 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 Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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
NSN4730-01-435-4710
Primary Part Number2BTX-B
Item NameNut,tube Coupling
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
StatusACTIVE
MaterialCOPPER ALLOY OVERALL
Reference Number Differentiating CharacteristicsSPECIAL CLEANING AND PACKAGING
Nominal Thread Size0.312 INCHES IN
Width Across Flats0.375 INCHES NOMINAL IN
Thread SeriesUNF
Criticality Code JustificationZZZY
Fabrication MethodMACHINED
Length to Shoulder0.460 INCHES NOMINAL IN
Thread Quantity Per Inch24
Seat Angle37.0 DEGREES NOMINAL
Nominal Tube Outside Diameter0.125 INCHES IN
Thread DirectionRIGHT-HAND
Thread Class2B
Nut Height0.540 INCHES NOMINAL IN
Nut StyleTUBE COUPLING
Smallest Inside Diameter0.180 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4730-00-889-61102BTXB INTERCHANGEABLE
Nut,tube Coupling
Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
Cross-Reference Index
Part NumberManufacturer
2BTX-B Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA)
Related Parts
4730-00-889-6110INTERCHANGEABLE
NUT,TUBE COUPLING
2BTXB

Frequently Asked Questions

What is NSN 4730-01-435-4710?

NSN 4730-01-435-4710 is a Nut,tube Coupling, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-435-4710?

NSN 4730-01-435-4710 has 1 cross-referenced part number: 2BTX-B (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division).

What NSN replaces 4730-01-435-4710?

There is 1 known substitute for 4730-01-435-4710: 4730-00-889-6110. Verify interchangeability with system specifications before substitution.

What are the specifications of 2BTX-B?

Key specifications for 2BTX-B: Material: COPPER ALLOY OVERALL; Reference Number Differentiating Characteristics: SPECIAL CLEANING AND PACKAGING; Nominal Thread Size: 0.312 INCHES IN; Width Across Flats: 0.375 INCHES NOMINAL 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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