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Stainless Steel Adapter, 3/8-18 Female NPT To 3/4-16 Male JIC 37 deg Flare, Straight

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Description & Features

This straight stainless steel adapter features a 3/8-18 female NPT thread on one end and a 3/4-16 male JIC 37-degree flare on the other. It is part of the Pipe To 37° Flare Stainless Steel Adapters product model line from SSP Fittings Corp. The adapter has a length of 2.06 inches and is designed for a tube O.D. of 0.5 inches.

The Stainless Steel Adapter, 3/8-18 Female NPT To 3/4-16 Male JIC 37 deg Flare, Straight, facilitates connections between different thread types in hydraulic systems.

SKU: J8FC

Supplier Part Number (MPN): J8FC

Alternate Part Numbers: C1DA70, MI-08750355, MINO-00766X89845

Specifications

Brand
SSP
Connection Size 1
1/2 in
Connection Size 2
3/8 in
Connection Type
FNPT, Male JIC
Connection Type 1
Male SAE 37 deg JIC Flare
Connection Type 2
Female NPT
Dimension Standards
ANSI/ASME B1.20.1, ANSI/ASME B1.20.3, ANSI/ASME BS 21, ASME B31.3, DIN 2999, JIS B0203, SAE J514
Dimensions
1.56 in L
Fitting Type
Connector
Hex Size
7/8 in
l Dimensions
2.06 in
Material
Stainless Steel
Material Construction
316 Stainless Steel
Maximum Operating Pressure
6000 psi
Series
J-FC Series
Thread Sealant
Without Thread Sealant
Thread Size
3/4-16 x 3/8-18
Tube OD
1/2 in
Tube Outside Diameter
1/2 in

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Product Questions & Answers (3)

Question by: Shane M on Oct 15, 2025, 8:26 AM
adapter's only 2 inches long -- will that be enough clearance to get a wrench on both ends when I'm torquing it down in a tight spot?
Answer by: Customer Support on Oct 16, 2025, 12:25 PM
At 2.06 inches total length, it is a fairly compact fitting. In tight quarters, you may need to seat the NPT end into the port first before fully tightening the JIC side, since both ends will be close together. Most standard crowfoot or flare nut wrenches can still get purchase on it, but planning your wrench access before final assembly will save you some frustration.
Question by: Dale W on Sep 27, 2025, 3:19 PM
Will this adapter hold up if it's run continuously in a hydraulic system?
Answer by: Customer Support on Sep 28, 2025, 3:22 PM
This adapter is made from stainless steel, offering good corrosion resistance and durability for demanding hydraulic applications.
Question by: Merle G on Sep 25, 2025, 8:59 PM
i’ve got a 3/8-18 female NPT port and need to hook up to a -8 JIC line, is J8FC the right adapter?
Answer by: Customer Support on Sep 27, 2025, 6:32 AM
For that kind of thread changeover, J8FC matches a 3/8-18 female NPT on one side and a 3/4-16 male JIC 37 degree flare on the other, in a straight body.

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