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Tectran 42-5 SAE 45° Flare Union Fitting 5/16" Tube O.D.

Part of: Tectran SAE Flare Union Fitting Tube

Other options in this family: Tectran 42-10 Tectran 41-5

Manufacturer

Part Number

42-5
Sale Price

$3.78

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Tectran 42-5 is a brass SAE 45° flare union fitting designed for 5/16" O.D. tubing. This straight union connects two flared tube ends of equal size, creating a secure, leak-resistant metal-to-metal seal — ideal for hydraulic, fuel, and air line applications in heavy-duty truck, trailer, and commercial vehicle systems.

Key Features:

  • Tube Size: 5/16" O.D.
  • Thread Size: 1/2"-20
  • Fitting Type: SAE 45° Flare Union (straight, tube-to-tube)
  • Material: Brass construction for corrosion resistance and durability
  • Sealing Method: Metal-to-metal 45° flare cone seal — no gaskets or O-rings required
  • Compliant with SAE J512 standard for 45° flare fittings

This fitting is a direct-connect union, joining two tube lines without a directional change. It is commonly used in brake, fuel, and hydraulic systems across heavy-duty trucks, trailers, and buses. Cross-reference part numbers include: 42X5, F42-5, S42-5, 242-5, 14205, and 04042-05.

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