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BRAKEQUIP 5/16 FUELFLEX - M14 X 1.5 FEMALE ADAPTOR - INVERTED

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Description & Features

This Brakequip fitting is a 5/16 FuelFlex M14 x 1.5 female inverted adaptor.

SKU: FL10-14MM

Supplier Part Number (MPN): FL10-14MM

Specifications

Brand BrakeQuip®	Connection Size 1 8 mm	Connection Size 2 14 mm	Connection Type FuelFlex x Female Inverted Seat	Connection Type 1 Male FuelFlex	Connection Type 2 Female Inverted Seat	Fitting Type Adapter	Material Brass	Material Construction Brass	Thread Size M14x1.5

Product Questions & Answers (3)

Question by: Hugh D on Apr 6, 2026, 9:27 PM

Will this FuelFlex adapter work with standard fuel lines, or do I need special stuff?

Answer by: Customer Support on Apr 8, 2026, 8:04 AM

This Brakequip adapter is made for use with 5/16 FuelFlex lines, connecting them to an M14 x 1.5 female inverted flare fitting.

Question by: Marvin A on Nov 16, 2025, 9:26 PM

got a FuelFlex line that’s 5/16, is this the adaptor that goes to an M14 x 1.5 female inverted end?

Answer by: Customer Support on Nov 18, 2025, 6:53 AM

For a 5/16 FuelFlex setup needing an M14 x 1.5 female inverted adaptor, this Brakequip fitting matches that description. The supplier part number for it is FL10-14MM.

Question by: Ray L on Mar 27, 2026, 7:46 AM

what exactly does the "inverted" part mean on this fitting, is that talking about the thread style or the flare type?

Answer by: Customer Support on Mar 29, 2026, 6:05 AM

Inverted refers to the flare seat orientation. On a standard flare, the cone faces outward. On an inverted fitting, that cone faces inward toward the fitting body, which is a common configuration on fuel and brake line connections, especially on older domestic vehicles and a lot of agricultural equipment. The M14 x 1.5 end is the female metric thread side, and the 5/16 FuelFlex side connects to Brakequip's FuelFlex line in that size.