Podavelle 3AN Hardline Nut & Sleeve for 3/16" OD Tubing — 2 Sets, 304 Stainless, 37° Flare

Podavelle 3AN stainless steel nuts and sleeves convert 3/16" hardline into a -3 AN 37° flare connection for reliable, corrosion-resistant fittings.

These two complete sets (two nuts and two sleeves) are precision-machined from 304 stainless steel to join 3/16" outside-diameter hardline with -3 AN (3/8-24 UNF) fittings. Designed for applications that require a 37° flare profile, the kit provides the hardware needed to finish a flared hardline end, whether for fuel, brake, transmission, or custom fluid routing. Note that the tube must be flared to 37° with the proper flaring tool before assembly; professional installation is recommended.

How does this kit create a leak-resistant AN connection?

The nut and sleeve clamp a properly flared 3/16" hardline into the -3 AN fitting, forming a metal-to-metal seal at the 37° flare face. Stainless components resist corrosion and hold torque reliably when installed to specification.

• 37° flare geometry compatible with -3 AN fittings
• 304 stainless steel resists rust and chemical exposure
• Precision thread (3/8-24 UNF) for consistent tightening
• Two sets included for dual-line or backup installations

What preparation and tools are required before assembly?

Your hardline must be cut square and flared to a 37° angle with an appropriate hardline flaring tool. Deburring and cleaning the tubing end before installing the sleeve and nut ensures a proper seal and prevents abrasion or leaks.

• Hardline cutter and deburring tool for clean ends
• 37° hardline flaring tool (compatible with AN flare angle)
• Proper torque wrench and AN-compatible wrenches for assembly
• Use of thread-friendly sealants only where recommended by installer

Will these parts fit my system and what materials are they suited for?

These components are sized for 3/16" outside-diameter hardline and standard -3 AN fittings (3/8-24 UNF thread). Manufactured from 304 stainless steel, they work well with many non-reactive fluids and in environments where corrosion resistance is required.

• Compatible with 3/16" OD hardline/tubing
• Designed for -3 AN (3/8-24 UNF) threaded fittings
• 304 stainless steel for general corrosion resistance
• Not intended for unsupported or undersized tubing without adapter

How should I approach installation and safety?

Installation requires accurate flaring and correct torque. If you are unfamiliar with AN flare practice or working with hardline, have a professional perform the flare and assembly to ensure safe, leak-free connections.

• Verify flare angle and seat before final tightening
• Do not over-tighten; use correct torque values for AN fittings
• Inspect seals and threads for damage before reuse
• If in doubt, consult a technician experienced with hardline and AN systems

Who is this for: The Podavelle 3AN nut and sleeve kit is intended for mechanics, fabricators, and serious DIYers installing or repairing -3 AN hardline systems using 3/16" tubing. It suits automotive and motorsport plumbing, custom fluid routing projects, and maintenance work where stainless fittings are preferred for durability and corrosion resistance. This product supplies the hardware only—flaring tools, sealants, and professional installation services are recommended if you lack experience with AN-style hardline connections.