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Male Jis X Male O-Ring Boss

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Description & Features

This straight Adaptall fitting connects a 1/4" male JIS (Japanese Industrial Standard) connection to a 3/8" male O-Ring Boss (Orb-SAE) port. It is constructed of steel for durability in hydraulic applications. The Male Jis X Male O-Ring Boss adapter has a Side 1 callout of G 1/4 - 19 and Side 2 callout of 9/16 - 18 UNF.

This adapter features a 17mm Adaptall Ch Width and an Adaptall L Length of 32.1mm.

SKU: 9277-04-06

Supplier Part Number (MPN): 9277-04-06

Specifications

Brand
adapt-all
Connection Size 1
1/4 in
Connection Size 2
3/8 in
Connection Type
Male JIS, Male SAE ORB
Connection Type 1
Male JIS
Connection Type 2
Male SAE ORB
Dimension Standards
JIS B 0202, SAE J1926
Dimensions
34.5 mm L
Finish
Zinc-Plated
Fitting Type
Adapter
Hex Size
19 mm
Material
Steel
Material Construction
Carbon Steel
Series
9277 Series
Thread Size
9/16-18 x 1/4-19

Product Questions & Answers (2)

Question by: Steve W on Oct 29, 2025, 9:02 PM
trying to hook a 1/4 JIS male line into a 3/8 ORB port, is this the right adapter?
Answer by: Customer Support on Oct 31, 2025, 6:25 PM
For that exact connection, it matches up as a straight steel Adaptall adapter with a 1/4 inch male JIS end (G 1/4 - 19) and a 3/8 inch male O-Ring Boss end (9/16 - 18 UNF).
Question by: Ross L on May 18, 2025, 7:15 AM
what's the thread spec on the ORB side of this fitting? trying to match it up to a port on my manifold block
Answer by: Customer Support on May 20, 2025, 6:55 AM
The O-Ring Boss side runs a 9/16-18 UNF thread, which is the standard callout for a 3/8" ORB-SAE port. If your manifold is spec'd for that size, you should be in good shape for a direct connection.

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