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Male Jis X Male O-Ring Boss

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

CH Width 17mm	L Length 32.1mm	Adaptall Material Steel	Adaptall Shape Straight	Side 1 Callout G 1/4 - 19	Side 1 Gender M	Side 1 Size 1/4"	Side 1 Type Jis	Side 2 Callout 9/16 - 18 UNF	Side 2 Gender M	Side 2 Size 3/8"	Side 2 Type Orb-Sae	Brand Adaptall America	Brand Adaptall	Pack Size 1.00	UOM EA	Supplier Part Number 9277-04-06	Product Weight 0.05 lbs

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.