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Stainless Steel Tube Fitting, 0.38 Inch Tube OD, Female JIC 37 deg Flare Nut

Description & Features

Designed for use with 3/8 inch OD tubing, this stainless steel fitting connects via a 9/16-18 female JIC 37-degree flare thread, making it well suited for hydraulic and fluid power lines where leak-free tube connections are required. The flare nut design allows the tube end to be seated and secured against a mating male JIC fitting without deforming the tube body.

The Stainless Steel Tube Fitting, 0.38 Inch Tube OD, Female JIC 37 deg Flare Nut is manufactured by SSP Fittings Corp and carries catalog number C1DA43. Stainless steel construction provides resistance to corrosion and is appropriate for demanding fluid system environments. Overall length is 0.72 inches.

SKU: J6N

Supplier Part Number (MPN): J6N

Alternate Part Numbers: C1DA43, MI-03254251, MINO-00766J24461

Specifications

Brand Ssp Fittings Corp	Brand SSP Fittings Corp	Pack Size 1.00	UOM EA	L 0.72	Supplier Part Number J6N	Thread 2 9/16-18	Tube O.D. 0.38	Alternate Part Numbers Alternate Part Number C1DA43, Alternate Part Number MI-03254251, Alternate Part Number MINO-00766J24461	Tube O.D. 0.38	Product Weight 0.05 lbs

Similar Products

Model Number	Tube O.D.	Thread 2	L
J10N Stainless Steel Tube JIC Nut	0.63	7/8-14	0.97
J12N Stainless Steel Tube JIC Nut	0.75	1-1/16-12	1.02
J4N Stainless Steel Tube JIC Nut	0.25	7/16-20	0.61
J6N Stainless Steel Tube JIC Nut	0.38	9/16-18	0.72
J16N Stainless Steel Tube JIC Nut	1	1-5/16-12	1.12
J20N Stainless Steel Tube JIC Nut	1.25	1-5/8-12	1.22
J3N Stainless Steel Tube JIC Nut	0.19	3/8-24	0.6
J5N Stainless Steel Tube JIC Nut	0.31	1/2-20	0.67

Product Questions & Answers (6)

Question by: Debbie J on Nov 1, 2025, 6:22 AM

Is this nut made of stainless?

Answer by: Customer Support on Nov 2, 2025, 11:43 AM

Yes, this is a stainless steel tube fitting nut.

Question by: Phil H on Feb 7, 2026, 4:14 PM

got a 3/8 inch tube line I need to terminate with a female JIC end, this the right nut for that?

Answer by: Customer Support on Feb 8, 2026, 4:53 PM

For a 3/8 inch OD tube going to a JIC 37 degree flare connection, yes, this is the right piece. The J6N is a stainless steel flare nut sized exactly for 0.38 inch tube OD and carries a 9/16-18 thread, which is the standard thread spec for 3/8 inch JIC fittings. It pairs with a mating male JIC 37 degree fitting on the other end.

Question by: Keith B on Mar 25, 2025, 9:56 AM

got a 3/8 tube line here, is this the right nut for a JIC 37 degree flare?

Answer by: Customer Support on Mar 26, 2025, 7:17 PM

For a 3/8 inch tube OD with a female JIC 37 degree flare nut, this part matches that setup. It is sized for 0.38 inch tube OD and uses a 9/16-18 thread.

Question by: Dustin R on Dec 20, 2025, 7:42 AM

does this nut fit 3/8 inch tubing or is that the thread size

Answer by: Customer Support on Dec 21, 2025, 12:48 PM

The 0.38 inch measurement refers to the outside diameter of the tube it connects to, not the thread size. The mating thread on this nut is 9/16-18, which is the standard JIC thread for 3/8 inch OD tube. So if you're working with 3/8 OD tubing and need a female JIC 37 degree flare connection, this is the right nut.

Question by: Shane J on Dec 26, 2025, 10:04 AM

got a stick of 3/8 tube here, is this the right nut for it or am i off a size

Answer by: Customer Support on Dec 27, 2025, 8:33 PM

For a 3/8 inch tube OD, this nut matches that size. It is a stainless steel female JIC 37 degree flare nut, with a 9/16-18 thread.

Question by: Floyd M on Jun 25, 2025, 2:47 PM

So this nut fits a 3/8 inch tube then? Just want to make sure I'm ordering the right thing.

Answer by: Customer Support on Jun 27, 2025, 2:21 PM

That's correct. The fitting is designed for use with 0.38 inch OD tubing.