12339 (12-339) by Midland | Metric Hydraulic Brake Fitting | Adapter Standard to Metric Bubble | 3/16″ Female Inverted Flare Seat x 13×1.5 Male Metric Bubble Flare | Straight | Brass

$7.99

Applications: Hydraulic brake, power steering, fuel lines and transmission cooler lines, LP and natural gas. Used With: Copper, brass, aluminum and steel…

SKU: FTC27181452 Category: Midland Industries

Description
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Applications:	Hydraulic brake, power steering, fuel lines and transmission cooler lines, LP and natural gas.	Used With:	Copper, brass, aluminum and steel hydraulic tubing that can be flared.
SAE Rating:	N/A	Conformance:	Meets specifications and standards of ASA, ASME, SAE and MS (Military Standards).
Vibration:	Excellent resistance.	Temperature Range:	-65°F to +250°F (-53°C to +121°C) range at maximum operating pressures.
Advantages:	Very low cost and reusable. Seats and threads are internal and protected. Compact, excellent vibration life. Short nut affords very close tube bends.	Tolerance:	+/- .03 on all dimensions.

Working Pressure Ranges:
Temperature and type of tubing used are important factors. However, the following table is a good guide for proper selection. Temperature 73°F with copper tubing:
Assembly Instructions:
1) Cut tubing to desired length. Make sure all burrs are removed and ends are cut square. 2) Slide nut on tube. Threaded end “A” of nut must face out. 3) Flare end of tube with a 450 flaring tool. A) Measure flare diameter B) Examine flare for excessive thin out. C) On thin wall, welded or brazed tubing, use double flare to prevent pinch-off and cracked flares. 4) Lubricate threads and assemble to fitting body. Nut should be turned hand tight.


Tube OD	1/8″	3/16″	1/4″	5/16″	3/8″	7/16″	1/2″	5/8″	3/4″	7/8″	1″
Thread OD (Threads per inch)	5/16-28	3/8-24	7/16-24	1/2-20	5/8-18	11/16-18	3/4-18	7/8-18	1-1/16-16	1-3/16-16	1-5/16-16

Standard Metric Threads:
Description Tube Size	Thread OD	Crest (Pitch)	Thread Description
Japanese 3/16″	10mm	1.0mm	M10 x 1.0
European 3/16″	10mm	1.0mm	M10 x 1.0
GM 6mm	12mm	1.0mm	M12 x 1.0
Fuel 5/16″	14mm	1.5mm	M14 x 1.5
Fuel 3/8″	16mm	1.5mm	M16 x 1.5
Measuring Metric Threads: Measure the O.D. of the threads and the crest to crest distance (pitch) in millimeters between threads.


Part Number	Female Inverted Flare Seat	Male Metric Bubble Flare	A	Hex	Reference #	Approx. Weight (Lbs.)
12336 (12-336)	3/16″ (3/8-24)	11×1.5	–	–	7973	–
12337 (12-337)	3/16″ (3/8-24)	(3/16″) (10×1.25)	1.00″	0.50″	7970	0.02
12339 (12-339)	3/16″ (3/8-24)	13×1.5	1.03″	0.56″	7972	0.04
12341 (12-341)	3/16″ (3/8-24)	12×1.0	1.02″	0.53″	7974	0.04

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