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Steel Tube Fitting, JIC 37 deg Flare Nut for 0.19 Inch OD Tube

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Description & Features

Designed for use with 0.19-inch OD tubing, this Steel Tube Fitting, JIC 37 deg Flare Nut is a spare part component from Eaton Aeroquip's 1290 Series Versil-Flare line. The JIC 37-degree flare connection type makes it well suited for hydraulic tube assemblies where a reliable metal-to-metal seal is required. With an A dimension of 0.6 inches and a B dimension of 0.44 inches, the fitting is compact and sized for small-bore tube connections commonly found in hydraulic circuits and fluid power systems.

As a replacement flare nut, this part is intended for use in maintaining or rebuilding existing Versil-Flare tube fitting assemblies. Steel construction provides the durability expected in demanding industrial hydraulic environments. The Eaton Aeroquip catalog reference for this part is C1AJ77.

SKU: 1290-3S

Supplier Part Number (MPN): 1290-3S

Alternate Part Numbers: C1AJ77, MI-00445334, MINO-00015I02057

Specifications

A
0.60
B
0.44
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
Series
1290
Supplier Part Number
1290-3S
Tube O.D.
0.19
Tube O.D.
0.19
Alternate Part Numbers
Alternate Part Number C1AJ77, Alternate Part Number MI-00445334, Alternate Part Number MINO-00015I02057, Alternate Part Number MINO-00925X08327
Product Weight
0.01 lbs

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Product Questions & Answers (2)

Question by: Steve P on Aug 9, 2025, 5:10 PM
what tube size does this flare nut fit, the 3/16 inch OD?
Answer by: Customer Support on Aug 11, 2025, 6:27 AM
this one is sized for 0.19 inch OD tube, which is your 3/16 inch tubing. The A dimension on it is 0.6 and the B dimension comes in at 0.44, so double-check those figures match up with whatever fitting body you're threading it onto before you put the order in.
Question by: Dean O on Oct 21, 2025, 9:36 PM
got a little aeroquip setup and i lost the nut off the end, is this 1290-3S just the replacement flare nut or a whole fitting
Answer by: Customer Support on Oct 23, 2025, 8:58 PM
It’s a spare part Versil-Flare nut from the Eaton Aeroquip 1290 Series. It’s the nut only, meant to replace the flare nut on the fitting, not a complete fitting assembly.