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10257 (10-257) Midland SAE 45° Flare Fitting - Male Adapter - 1/4" Male SAE 45° Flare x 3/8" Male NPTF - Brass

10257 by Midland | SAE 45° Flare Fitting | 1/4" Male SAE 45° Flare x 3/8" Male NPTF | Adapter | Brass

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$2.75
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$1.65
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Midland Industries
Brass Fitting - SAE 45° Flare - Male Adapter - Brass

Inventory @ Manufacturers Warehouse: 4152 Units
Specifications for Variant SKU: 10257 Midland
Shape (Orientation): Straight
Ends Configuration: 1/4in Male SAE 45 Flare, 3/8in Male NPTF
Material(s): Brass
Applicable Specs & Approvals: Applicable ASA Standards, Applicable ASME Standards, Applicable SAE Standards, Applicable Military Standards
Applications: LP and Natural Gas, Flammable Liquids, Instrumentation, Refrigeration, Power Steering, Hydraulic and Pneumatic Systems. Used With: Copper, Brass, Aluminum and Steel hydraulic tubing that can be flared.
SAE Rating: SAE# 010102 Conformance: Meets specifications and standards of ASA, ASME, SAE and MS (Military standards).
Vibration: Good resistance - use long nut when greater vibration resistance is required. Temperature Range: -65°F to +250°F (-53°C to +121°C) range at maximum operating pressures
Tolerance: +/- .03 on all dimensions. Dimension data can change without notice. Please call us when dimensions are critical. Lead Free: Not Lead Free
Working Pressure Ranges:
  • Temperature and type of tubing used are important factors. However, the following table is a good guide for proper selection. Temperature 730F 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.
  • 4) Lubricate threads and assemble to fitting body. Nut should be turned hand tight.
  • 5) Tighten assembly with wrench until a solid feeling is encountered. From that point, apply a one-sixth turn.
  • Note: Do not over-torque as it may damage the fitting or split the tubing at the flare.
Tube OD 1/8" 3/16" 1/4" 5/16" 3/8" 7/16" 1/2" 5/8" 3/4"
Thread Size B 5/16-24 3/8-24 7/16-20 1/2-20 5/8-18 11/16-16 3/4-16 7/8-14 1-1/16-14
Crossover Series:
48 248 408 U1 48
Part Number Male Flare x Female NPTF A Hex Approx. Weight
(Lbs.)
10253
(10-253)		 1/8" x 1/8" 0.92" 0.43" 0.02
10254
(10-254)		 3/16" x 1/8" 1.00" 0.43" 0.03
10255L*
(10-255L)		 1/4" x 1/8" 1.06" 0.43" 0.03
10255
(10-255)		 1/4" x 1/8" 1.06" 0.43" 0.04
10255EH**
(10-255EH)		 1/4" x 1/8" 1.06" 0.44" 0.03
10256L*
(10-256L)		 1/4" x 1/4" 1.15" 0.56" 0.03
10256
(10-256)		 1/4" x 1/4" 1.25" 0.56" 0.04
10256SS
(10-256SS)
(Stainless Steel)		 1/4" x 1/4" - - -
10257
(10-257)		 1/4" x 3/8" 1.31" 0.68" 0.06
10258
(10-258)		 1/4" x 1/2" 1.44" 0.87" 0.11
10259L*
(10-259L)		 5/16" x 1/8" 1.15" 0.50" 0.04
10259
(10-259)		 5/16" x 1/8" 1.16" 0.50" 0.04
10260L*
(10-260L)		 5/16" x 1/4" 1.31" 0.56" 0.06
10260
(10-260)		 5/16" x 1/4" 1.34" 0.56" 0.06
10261
(10-261)		 5/16" x 3/8" 1.38" 0.68" 0.08
10262
(10-262)		 3/8" x 1/8" 1.25" 0.62" 0.07
10263L*
(10-263L)		 3/8" x 1/4" 1.31" 0.62" 0.06
10263
(10-263)		 3/8" x 1/4" 1.44" 0.62" 0.08
10263SS
(10-263SS)
(Stainless Steel)		 3/8" x 1/4" - - -
10264L*
(10-264L)		 3/8" x 3/8" 1.37" 0.68" 0.09
10264
(10-264)		 3/8" x 3/8" 1.42" 0.68" 0.09
10264SS
(10-264SS)
(Stainless Steel)		 3/8" x 3/8" - - -
10265L*
(10-265L)		 3/8" x 1/2" 1.44" 0.89" 0.12
10265
(10-265)		 3/8" x 1/2" 1.69" 0.87" 0.14
10266
(10-266)		 3/8" x 3/4" 1.81" 1.06" 0.18
10267
(10-267)		 1/2" x 1/4" 1.60" 0.75" 0.11
10268L*
(10-268L)		 1/2" x 3/8" 1.46" 0.75" 0.10
10268
(10-268)		 1/2" x 3/8" 1.62" 0.75" 0.12
10269L*
(10-269L)		 1/2" x 1/2" 1.62" 0.87" 0.13
10269
(10-269)		 1/2" x 1/2" 1.79" 0.87" 0.15
10270
(10-270)		 1/2" x 3/4" 1.75" 1.06" 0.22
10271
(10-271)		 5/8" x 1/4" 1.81" 0.87" 0.14
10272L*
(10-272L)		 5/8" x 3/8" 1.67" 0.87" 0.14
10272
(10-272)		 5/8" x 3/8" 1.81" 0.87" 0.18
10273L*
(10-273L)		 5/8" x 1/2" 1.80" 0.87" 0.11
10273
(10-273)		 5/8" x 1/2" 2.00" 0.87" 0.20
10274
(10-274)		 5/8" x 3/4" 1.85" 1.06" 0.21
10275
(10-275)		 3/4" x 1/2" 2.19" 1.06" 0.28
10276
(10-276)		 3/4" x 3/4" 2.08" 1.06" 0.28
10277
(10-277)		 7/8" x 1/2" 2.22" 1.25" 0.52
10278
(10-278)		 7/8" x 3/4" 2.35" 1.25" 0.41
10279
(10-279)		 1" x 3/4" 2.44" 1.43" 0.53
10280
(10-280)		 1" x 1" 2.44" 1.43" 0.53

* "L" means light pattern: These fittings are completely interchangeable with full pattern fittings, but have been modified in some way. This modification is usually in the length of the pipe threads. Used in plumbing and light industrial.

** "H" means heavy pattern

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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