Skip to content
Login for the best B2B Wholesale Experience.
Login for the best B2B Wholesale Experience.
12121 (12-121) Midland Inverted Flare Fitting - Male Run Tee - 3/8" Female Inverted Flare x 1/4" Male NPTF - Brass

12121 by Midland | Inverted Flare Fitting | 3/8" Female Inverted Flare x 1/4" Male NPTF | Run Tee | Brass

Save $14.29 Save $14.29
$35.72
$35.72 - $35.72
$35.72
$21.43
$21.43 - $21.43
$21.43

Midland Industries
Brass Fitting - Inverted Flare Fitting - Male Run Tee - Female Inverted Flare x Male NPTF - Brass

Inventory @ Manufacturers Warehouse: 46 Units
Specifications for Variant SKU: 12121 Midland
Shape (Orientation): Tee
Ends Configuration: 3/8in Female Inverted Flare, 1/4in Male NPTF, 1/4in Male NPTF, Some Ends Match
Material(s): Brass
Applicable Specs & Approvals: Applicable ASA Standards, Applicable ASME Standards, Applicable SAE Standards, Applicable Military Standards

SPECIFICATIONS

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: SAE# 040424 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:
51IF 511N 251IFHD 752 550 151
Part Number Female Inverted Flare (1 & 3) x Male NPTF (2) A B C Approx. Weight
(Lbs.)
12118
(12-118)		 3/16" x 1/8" 0.53" 0.72" 0.39" 0.06
12119
(12-119)		 1/4" x 1/8" 0.56" 0.75" 0.42" 0.08
12120
(12-120)		 5/16" x 1/8" 0.62" 0.85" 0.45" 0.10
12121
(12-121)		 3/8" x 1/4" 0.75" 1.08" 0.56" 0.14
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.

Shop Parts by Midland Industries