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12257 (12-257) by Midland | Inverted Flare | 3/8" Male SAE Flare x 7/16" Male Inverted Flare | Straight | Brass

12257 (12-257) by Midland | Inverted Flare | 3/8" Male SAE Flare x 7/16" Male Inverted Flare | Straight | Brass

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$17.58
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$17.58
$14.85
$14.85 - $14.85
$14.85

Midland Industries
Brass Fitting - Inverted Flare Fitting - Male SAE Flare x Male Inverted Flare - Brass
Specifications for Variant SKU: 12257 Midland
Shape (Orientation): Straight
Ends Configuration: 3/8in Male SAE 45 Flare, 7/16in Male Inverted Flare
Material(s): Brass
Applicable Specs & Approvals: ASA, ASME, SAE, MS (Military Standards)
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.
Crossover Series:
4205
Part Number Male SAE Flare x Male Inverted Flare A Hex Reference # Approx. Weight
(Lbs.)
12250
(12-250)		 1/4" x 3/16" 1.03" 0.43" 1518 0.02
12252
(12-252)		 1/4" x 1/4" 1.03" 0.43" 1522 0.03
12254
(12-254)		 3/8" x 5/16" 1.34" 0.63" 1553 0.08
12256
(12-256)		 3/8" x 3/8" 1.37" 0.63" 1563 0.09
12257
(12-257)		 3/8" x 7/16" 1.40" 0.68" 1554 0.10
Midland Industries

Midland Industries

Midland Industries is a family of brands recognizable industry wide. Midland is a supplier of brass fittings, valves, and accessories for hose, pipe and tube in brass, bronze, stainless steel, steel, malleable iron, and plastics.

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