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Jis Conversion Adapter

Description & Features

Designed for JIS (Japanese Industrial Standard) hydraulic connections, this steel Jis Conversion Adapter from Adaptall enables compatibility between JIS-threaded ports and other fitting systems. With a G 1-1/4 - 11 thread callout on the JIS side and a 1-1/4" port size, it is suited for medium-to-large bore hydraulic circuits where JIS connectivity is required.

Manufactured in steel for durability in demanding industrial environments, the adapter measures 37.5mm in width and 17mm in length, a compact component form factor that fits within tight hydraulic manifold or port configurations. Adaptall's conversion adapter series is widely used when adapting imported or OEM equipment with JIS-standard ports to alternative fitting standards.

SKU: 9999-20

Supplier Part Number (MPN): 9999-20

Alternate Part Numbers: MI-03504110, MINO-03671X58648

Specifications

CH Width 37.5mm	L Length 17mm	Adaptall Material Steel	Adaptall Shape Component	Side 1 Callout G 1-1/4 - 11	Side 1 Gender -	Side 1 Size 1-1/4"	Side 1 Type Jis	Alternate Part Numbers Alternate Part Number MI-03504110, Alternate Part Number MINO-03671X58648	Brand Adaptall America	Brand Adaptall	Pack Size 1.00	UOM EA	Supplier Part Number 9999-20	Product Weight 0.10 lbs

Product Questions & Answers (2)

Question by: Hank F on Aug 1, 2025, 6:57 AM

Got some older imported equipment with JIS ports and need to tie it into a standard hydraulic line. This the kind of adapter that bridges that gap?

Answer by: Customer Support on Aug 3, 2025, 6:02 AM

JIS ports show up pretty often on Japanese-built machinery, and getting them to play nice with other fitting standards is exactly what this adapter is built for. It covers a G 1-1/4 - 11 thread on the JIS side with a 1-1/4" port size, so it fits squarely in the medium-to-large bore range. Adaptall makes these for situations where imported or OEM equipment needs to connect to a different fitting system without reworking the whole port.

Question by: Brent J on Sep 11, 2025, 8:24 PM

Will this adapter work for connecting a JIS fitting to something that's not JIS?

Answer by: Customer Support on Sep 13, 2025, 6:52 AM

Designed specifically for that purpose, this adapter lets you transition from JIS (Japanese Industrial Standard) to other fitting types.