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Brakequip Fitting - Female3/8NF X 5/8NF EXT. Thread

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Description & Features

Designed for brake line and hydraulic fitting applications, this female-to-female thread adapter from Brakequip connects a 3/8 NF internal thread to a 5/8 NF external thread configuration. The Brakequip Fitting - Female 3/8NF x 5/8NF Ext. Thread serves as a reliable conversion fitting where differing thread sizes must be joined within a single assembly.

With data limited to thread sizing and brand, this fitting is best evaluated alongside the full specification table on this page. It is suited to brake system fabrication and repair where thread adaptation between these two NF sizes is required.

SKU: HFIFX04

Supplier Part Number (MPN): HFIFX04

Alternate Part Numbers: C1MB26

Specifications

Brand
BrakeQuip®
Connection Type
FPT
Dimensions
45 mm L
Hex Size
19 mm

Product Questions & Answers (2)

Question by: Wes M on Jul 27, 2025, 7:29 PM
trying to join a 3/8 NF female thread to a 5/8 NF male thread, is that what this adapter is for?
Answer by: Customer Support on Jul 29, 2025, 6:51 AM
For brake line and hydraulic fitting work, it acts as a thread converter that mates a 3/8 NF internal (female) thread on one side to a 5/8 NF external (male) thread on the other.
Question by: Ross T on Jul 2, 2025, 7:13 AM
Reckon this'll fit right for hooking up a 3/8 NF brake line to a 5/8 NF?
Answer by: Customer Support on Jul 4, 2025, 6:32 AM
This Brakequip fitting is designed to adapt a female 3/8 NF internal thread to a 5/8 NF external thread, so it should do the trick for that application.

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