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12274 (12-274) by Midland | Inverted Flare Fitting | Metric Tube Nut | 5/16 Domestic | M14 x 1.5 Surface Seal Thread | Zinc Steel Sale!

12274 (12-274) by Midland | Inverted Flare Fitting | Metric Tube Nut | 5/16 Domestic | M14 x 1.5 Surface Seal Thread | Zinc Steel

(3 customer reviews)

$10.12 $8.10

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 o

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Introduction

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: -65F to +250F (-53C to +121C) 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 73F 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 Tube Size Thread REF#
12260
(12-260)
3/16 British 3/8-24 Bubble
12261
(12-261)
3/16 European M10 x 1.0 Bubble 276110
12262
(12-262)
3/16 Japanese M10 x 1.0 Inv. 121050
12263
(12-263)
3/16 Domestic 1/2 x 20 Inv
12264
(12-264)
3/16 Domestic 9/16 – 18 Inv 121039
12265
(12-265)
3/16 Imported M11 x 1.5 Bubble 276011
12266
(12-266)
3/16 Imported M12 x 1.0 Bubble 276012
12267
(12-267)
3/16 Imported M13 x 1.5 Bubble 276013
12268
(12-268)
1/4 Domestic 9/16 x 18 Inv 121049
12269
(12-269)
1/4 Domestic 1/2 x 20 Inv. 121045
12270
(12-270)
6mm Imported M12 x 1.0 Bubble
12271
(12-271)
6mm GM M12 x 1.0 Bubble
12272
(12-272)
6mm GM M12 x 1.5 Bubble
12273
(12-273)
6mm GM M14 x 1.5 Bubble
12274
(12-274)
5/16 Domestic M14 x 1.5 Surface Seal 121069
12275
(12-275)
3/8 Domestic M16 x 1.5 Surface Seal 121070

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