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

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Description & Features

This Eaton Aeroquip steel tube fitting features a JIC 37-degree flare nut designed for use with 0.75-inch OD tubing, facilitating secure and reliable connections in hydraulic systems.

The fitting has an A dimension of 1.02 inches and a B dimension of 1.25 inches. This spare Versil-Flare nut is manufactured to meet demanding hydraulic application requirements.

SKU: 1290-12S

Supplier Part Number (MPN): 1290-12S

Alternate Part Numbers: C1AJ73, MI-00317456, MINO-00015F64635

Specifications

Brand
Aeroquip® by Danfoss
Connection Type
SAE 37 deg Flared
Dimension Standards
SAE 070110/J514
Finish
Dura-Kote™
Fitting Type
Nut
For Use With
900605 Tube Sleeves
Hex Size
1-1/4
Material
Steel
Material Construction
Carbon Steel
Series
1290 Series
Thread Size
1-1/16-12

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Product Questions & Answers (3)

Question by: Phil M on Jul 2, 2025, 10:03 AM
trying to replace a lost nut on a JIC line, is 1290-12S the right one for 3/4 tube?
Answer by: Customer Support on Jul 4, 2025, 6:09 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.
Question by: Gary C on May 22, 2025, 4:41 PM
Got a 3/4 inch OD tube line that needs a new flare nut, this the right part for that?
Answer by: Customer Support on May 23, 2025, 5:49 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.
Question by: Bobby C on Apr 24, 2025, 9:07 AM
What size tubing does this nut fit? Just want to make sure I'm ordering the right thing.
Answer by: Customer Support on Apr 25, 2025, 2:44 PM
This flare nut is made for use with 0.75 inch OD (Outside Diameter) tubing.

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