JIS Fittings(Japanese Industrial Standard Fittings)- StrongFlex

JIS Hydraulic Fittings Manufacturer | Japanese Standard Hose Fittings Supplier

JIS fittings are a common type of hydraulic fitting that is commonly used in Japan and other Asian countries. JIS hydraulic fittings are used in industrial machinery and hydraulic equipment to connect hydraulic hoses and tubes. Its most obvious differentiation is 30-degree flare angle, unlike the 37-degree JIC fittings. JIS fittings (Japanese Industrial Standard) are available in a range of sizes, small-sized JIS hose fittings are used in low-pressure equipment, large-sized JIS hydraulic fittings are used in high-pressure applications.

Strongflex is a company specializing in hydraulic solutions, manufacturing a wide range of hoses and fittings to provide leak-free connection. We can supply and customize JIS hydraulic hose fittings according to your requirements. If you are looking for JIS hydraulic fittings, please contact us and we will providing solutions for you!

Send Inquiry

JIS fittings

JIS fitting Types

We supply a wide range of JIS fittings.

JIS adapters, including JIC-to-JIC adapters, JIS-to-BSPP/BSPT (British standard) adapters, and JIS-to-ORFS/ORB/SAE (American standard) adapters.
JIS hydraulic fittings (designed for direct crimping onto hose ends)
JIS caps
JIS plugs.

Material:
Carbon Steel / Stainless Steel

OEM & Custom Service Available

JIS Metric 60° Cone Seal Fittings

The JIS 60° cone seat (or flare) fitting is a type of pipe fitting commonly used in hydraulic systems, primarily adhering to Japanese Industrial Standards (JIS). It is widely used in machinery and equipment designed or manufactured in Japan and South Korea—such as excavators and injection molding machines—as well as in industrial piping systems.

JIS Metric Male 60° Cone Seat - 18611

1.Material: Carbon steel #45 /Stainless steel
2.Application: Used for 1SN/2SN hose.
3.Spiral fitting: 18612

Part No.	Thread	DN	DASH	A	C	S1
18611-14-04	M14×1.5	6	4	29.5	17	17
18611-14-06	M14×1.5	10	6	29.5	17	17
18611-16-04	M16×1.5	6	4	30.5	18	17
18611-16-06	M16×1.5	10	6	30.5	18	17
18611-18-06	M18×1.5	10	6	30.5	18	19
18611-20-08	M20×1.5	12	8	35	20	22
18611-22-08	M22×1.5	12	8	35	20	24
18611-24-10	M24×1.5	16	10	39.5	21.5	27
18611-30-12	M30×1.5	20	12	45	26	32
18611-33-16	M33×1.5	25	16	50.5	30	36
18611-36-20	M36×1.5	32	20	55	33	38
18611-42-24	M42×1.5	40	24	60	36	46

JIS Metric Female 60° Cone Seat - 28611

1.Material: Carbon steel #45 /Stainless steel
2.Application: Used for 1SN/2SN hose.
3.Spiral fitting: 28612

Part No.	Thread	DN	DASH	A	C	S1	S2
28611-12-04	M12×1.5	6	4	20	9	17	17
28611-14-04	M14×1.5	6	4	21	10.5	19	19
28611-14-06	M14×1.5	10	6	21	10.5	19	19
28611-16-04	M16×1.5	6	4	24	10	22	22
28611-16-05	M16×1.5	8	5	24	10	22	22
28611-16-06	M16×1.5	10	6	24	10	22	22
28611-18-06	M18×1.5	10	6	25	11.5	24	24
28611-18-08	M18×1.5	12	8	24.5	11.5	24	24
28611-20-08	M20×1.5	12	8	28.5	12	27	27
28611-22-08	M22×1.5	12	8	25.5	14	27	27
28611-24-08	M24×1.5	12	8	27.5	15	32	32
28611-24-10	M24×1.5	16	10	28.5	15	32	32
28611-27-10	M27×1.5	16	10	28.5	10	32	32
28611-30-12	M30×1.5	20	12	28.5	18.3	36	36
28611-33-12	M33×1.5	20	12	31	21.3	41	41
28611-33-16	M33×1.5	25	16	32	21.3	41	41
28611-36-20	M36×1.5	32	20	35.5	20	46	46
28611- 42-24W	M42×1.5	40	24	36	18.8	50	55

45° JIS Metric Female 60° Cone Seat - 28641

1.Material: Carbon steel #45 /Stainless steel
2.Application: Used for 1SN/2SN hose.
3.Spiral fitting: 18642

Part No.	Thread	DN	A	C	H	S1	S2
28641-14-04	M14×1.5	6	43.4	10.5	21.3	19	19
28641-16-05	M16×1.5	8	47.6	10	24.3	22	22
28641-18-06	M18×1.5	10	49.2	11.5	24.9	24	24
28641-22-08	M22×1.5	12	262.1	14	27.2	27	27
28641-24-10	M24×1.5	16	74.4	15	29.9	32	32
28641-30-12	M30×1.5	20	80.9	18.3	33.5	36	36
28641-33-16	M33×1.5	25	89.9	21.3	35.7	41	41
28641-36-20	M36×1.5	32	104.1	20	41.9	46	46
28641-42-24W	M42×1.5	40	116.2	18.8	45.5	50	55

90° JIS Metric Female 60° Cone Seat - 28691

1.Material: Carbon steel #45 /Stainless steel
2.Application: Used for 1SN/2SN hose.
3.Spiral fitting: 28692

Part No.	Thread	DN	DASH	A	C	H	S1	S2
28691-14-04	M14×1.5	6	4	30	10.5	38	19	19
28691-14-06	M14×1.5	10	6	35.5	10.5	43.3	19	19
28691-16-05	M16×1.5	8	5	33	10	44	22	22
28691-18-06	M18×1.5	10	6	35.5	11.5	46.3	24	24
28691-22-08	M22×1.5	12	8	41	14	52.5	27	27
28691-24-10	M24×1.5	16	10	56.5	15	59	32	32
28691-30-12	M30×1.5	20	12	65.5	18.3	68.58	36	36
28691-33-16	M33×1.5	25	16	76.7	21.3	76	41	41
28691-36-20	M36×1.5	32	20	93	20	90	46	46
28691-42-24W	M42×1.5	40	24	109.4	18.8	103	50	55

JIS Flange Fittings

A JIS flange connection refers to a flange assembly that complies with Japanese Industrial Standards (JIS) specifications. It utilizes a combination of flanges, gaskets, and bolts to create a detachable, sealed connection between piping, valves, and equipment.

JIS Flange - 88111

1.Material: Carbon steel f45 / Stainless steel
2.Application: Used for 1SN/2SN hose
3.Spiral fitting: 88112

Part No.	Flange Size	DN	DASH	A	C	D	L
88111-10-08	5/8″	12	8	45	34.2	27.8	6.7
88111-10-10	5/8″	16	10	46	34.2	27.8	6.7
88111-10-12	5/8″	20	12	46	34.2	27.8	6.7

45° JIS Flange - 88141

1.Material: Carbon steel #45 /Stainless steel
2.Application: Used for 1SN/2SN hose.
3.Spiral fitting: 88142

Part No.	Flange Size	DN	DASH	A	C	D	H	L
88141-10-08	5/8″	12	58.9	8	34.2	27.8	24	6.7
88141-10-10	5/8″	16	70.2	10	34.2	27.8	25.3	6.7
88141-10-12	5/8″	20	76.2	12	34.2	27.8	28.8	6.7

90° JIS Flange - 88191

1.Material: Carbon steel #45 /Stainless steel
2.Application: Used for 1SN/2SN hose.
3.Spiral fitting: 88192

Part No.	Flange Size	DN	DASH	A	C	D	H	L
88191-10-08	5/8″	12	8	41	34.2	27.8	48	6.7
88191-10-10	5/8″	16	10	56.5	34.2	27.8	52.5	6.7
88191-10-12	5/8″	20	12	65.5	34.2	27.8	62	6.7

JIS GAS 60° Cone Seal Fittings

JIS GAS fittings are commonly used in Japanese industrial hydraulic systems.

JIS GAS Female 60° Cone Seat/ JIS B8363 - 29611

1.Material: Carbon steel #45 / Stainless steel
2.Application: Used for 1SN/2SN hose
3.Spiral fitting: 29612

Part No.	Thread	DN	DASH	A	C	S1	S2
29611-02-03	G 1/8″*28	5	3	20	7	14	14
29611-04-04	G1/4×19	6	4	21	8	19	19
29611-04-05	G1/4×19	8	5	21	8	19	19
29611-06-04	G3/8″ ×19	6	4	24	9	22	22
29611-06-06	G3/8″ ×19	10	6	23	9	22	22
29611-08-06	G1/2″ ×14	10	6	28	12	27	27
29611-08-08	G1/2″ ×14	12	8	26.5	12	27	27
29611-10-10	G5/8″ ×14	16	10	31	11.5	30	30
29611-12-10	G3/4″ ×14	16	10	28.5	13.5	32	32
29611-12-12	G3/4″ ×14	20	12	28.5	13.5	32	32
29611-16-16	G1″ ×11	25	16	33	16	41	41
29611-20-20W	G1.1/4×11	32	20	43	18.5	50	50
29611-24-24W	G1.1/2×11	40	24	43.5	19	55	55
29611-32-32W	G2″ ×11	50	32	43.5	23	70	70

45° JIS GAS Female 60° Cone Seat/ JIS B8363 - 29641

1.Material: Carbon steel #45 / Stainless steel
2.Application: Used for 1SN/2SN hose
3.Spiral fitting: 29642

Part No.	Thread	DN	DASH	A	C	H	S1	S2
29641-04-04	G1/4×19	6	4	43.4	8	21.3	19	19
29641-06-06	G3/8″ ×19	10	6	48.9	9	24.6	22	22
29641-08-08	G1/2″ ×14	12	8	62.5	12	27.5	27	27
29641-12-12	G3/4″ ×14	20	12	81.3	13.5	33.9	32	32
29641-16-16	G1″ ×11	25	16	87.3	16	36	41	41
29641-20-20W	G1.1/4×11	32	20	107.3	18.5	46.5	50	50
29641-24-24W	G1.1/2×11	40	24	122.8	19	50.8	55	55
29641-32-32W	G2″ ×11	50	32	143	23	60	70	70

90° JIS GAS Female 60° Cone Seat/ JIS B8363 - 29691

1.Material: Carbon steel #45 / Stainless steel
2.Application: Used for 1SN/2SN hose
3.Spiral fitting: 29692

Part No.	Thread	DN	DASH	A	C	H	S1	S2
29691-04-04	G1/4×19	6	4	30	8	38	19	19
29691-04-05	G1/4×19	8	5	33	8	41	19	19
29691-06-06	G3/8″ ×19	10	6	35.3	9	45.8	22	22
29691-08-08	G1/2″ ×14	12	8	41	12	53	27	27
29691-10-10	G3/8×14	16	10	56.5	11.5	61	30	30
29691-12-12	G3/4″ ×14	20	12	65.5	13.5	69	32	32
29691-16-16	G1″ ×11	25	16	76.7	16	76.5	41	41
29691-20-20W	G1.1/4×11	32	20	91.5	18.5	92.5	50	50
29691-24-24W	G1.1/2×11	40	24	109.4	19	110.5	55	55
29691-32-32W	G2″ ×11	50	32	131.8	23	133.8	70	70

JIS Hydraulic Fittings Specifications

Standard: Japanese Industrial Standard B8363

Connection Type: 30° Flare / Cone Seal

Material: Carbon Steel / Stainless Steel/Brass/Customized

Surface Treatment: Zinc Plated

Hose Type: 1SN / 2SN / 4SP / 4SH

Size: 1/4″ – 2″

Applications of JIS fittings

JIS fittings can connect a variety of threaded fittings, the main common ones are flange rubber joints, JIS Cap, JIS Plug, JIS Male to JIS Female fittings, JIS Female Swivel Branch Tee Fittings, JIS Male to BSPT Male Fittings, JIS Male to BSPT Male Elbow fittings, JIS Male to BSPP Male O-Ring fittings, Male JIC to Male JIS Union Fittings, Male JIS to Male SAE Oring, JIS Male to NPT Male fittings,
Japanese hydraulic fittings can be made of stainless steel, carbon steel, aluminum alloy and other materials, and can transport a variety of media, including clean water, seawater, oil, chemical products and gas media. Commonly used in industrial machinery, construction equipment, and agricultural machinery.

Why Choose Strongflex JIS Fittings?

We use high-quality raw materials and automated production machinery to produce high-quality hydraulic fittings with high precision and fast speed. We can produce 100,000 pcs per day. After production, the products will undergo salt spray testing to ensure the service life during later use.

Automated production of hydraulic fittings

As a hydraulic fittings manufacturer, we can customize the material, size, pressure and packaging of the connectors. We can provide free samples. If you have any needs, please feel free to contact us.

Send Inquiry

What is JIS fitting?

JIS fittings refer to fittings that comply with Japanese Industrial Standards (JIS). JIS hose fittings strictly follow Japanese Industrial Standards in manufacturing process and are commonly used in heavy equipment in Japan and South Korea. They are characterized by a 30-degree flare angle.

What are JIS standards for?

JIS stands for Japanese Industrial Standards, which are formulated and implemented by the Japan Industrial Standards Commission (JISC). Since its official establishment in 1949, this standard has become an important technical specification in the Japanese industrial field. The JIS hydraulic hose fitting series is an important part of this standard. Hydraulic fittings also involve a variety of other standards and parameters, such as material standards, performance standards, etc. These standards together ensure the quality and performance of hydraulic fittings.

What does JIS stand for in hydraulic fittings?

JIS stands for Japanese Industrial Standard in hydraulic fittings and is mainly used to manage and regulate the design, manufacture and testing of hydraulic fittings.

Is JIS the same as JIC?

The most significant difference between JIC and JIS fittings is the flare angle. JIC fittings have a 37-degree flare angle, while JIS fittings have a 30-degree flare angle.

Comparison between JIS standards and other standards

Compared with other standards such as SAE and ISO, the application of JIS standards in hydraulic accessories is unique. SAE standards are widely used in North America, focusing on performance standards and material requirements, and are applicable to the automotive, aerospace and heavy equipment industries; ISO standards are widely accepted in Europe and other global markets, ensuring cross-border compatibility, and are applicable to industrial machinery and energy fields; while JIS standards are known for their compact design and high performance, and are preferred for use in the precision machinery and robotics industries‌.

What is JIS in engineering?

The implementation of JIS standards is of great significance to engineering practice. It ensures the quality and safety of products and ensures the compatibility of products.

What does JIS stand for in hydraulics?

JIS in hydraulics refers to JIS standard hose fittings, pipe fittings and thread specifications, which are formulated by the Japan Industrial Standards Research Council and cover multiple industries such as machinery, electronics, and chemicals, and are commonly used in Asia.