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Steel Tube Fitting, JIC 37 deg Flare Nut for 0.75 Inch OD Tube

A 1.02	B 1.25	Brand Danfoss Power Solutions (II LLC Aeroquip)	Brand Aeroquip	Pack Size 1.00	UOM EA	Series 1290	Supplier Part Number 1290-12S	Tube O.D. 0.75	Tube O.D. 0.75	Alternate Part Numbers Alternate Part Number C1AJ73, Alternate Part Number MI-00317456, Alternate Part Number MINO-00015F64635	Product Weight 0.18 lbs

Product Questions & Answers 3

Product Questions & Answers

trying to replace a lost nut on a JIC line, is 1290-12S the right one for 3/4 tube?

Question by: Phil M on Jul 2, 2025, 10:03 AM

For a 0.75 inch OD tube, the 1290-12S is the matching 1290 Series JIC 37 degree flared nut, so it fits that tube size and flare style.

Answer by: Customer Support on Jul 4, 2025, 6:09 AM

Got a 3/4 inch OD tube line that needs a new flare nut, this the right part for that?

Question by: Gary C on May 22, 2025, 4:41 PM

For 3/4 inch OD tube with a JIC 37 degree flare connection, this is the correct nut. It's part of the Eaton Aeroquip 1290 Series and carries the catalog number C1AJ73. The A dimension runs 1.02 inches and the B dimension is 1.25 inches, so double-check those measurements against your existing hardware before ordering. It's a steel fitting, so it should hold up well in standard hydraulic line applications.

Answer by: Customer Support on May 23, 2025, 5:49 PM

What size tubing does this nut fit? Just want to make sure I'm ordering the right thing.

Question by: Bobby C on Apr 24, 2025, 9:07 AM

This flare nut is made for use with 0.75 inch OD (Outside Diameter) tubing.

Answer by: Customer Support on Apr 25, 2025, 2:44 PM

Similar Products

Model Number	Tube O.D.	A	B
1290-4S	0.25	0.62	0.56
1290-10S	0.63	0.97	1
1290-12S	0.75	1.02	1.25
1290-16S	1	1.12	1.5
1290-6S	0.38	0.72	0.69
1290-8S	0.5	0.84	0.88
1290-20S	1.25	1.22	2
1290-3S	0.19	0.6	0.44
1290-5S	0.31	0.67	0.62