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NSN 5306-01-125-4135

Close Tolerance Hex Head Bolt

About this product

4.015 inches fastener length, hexagon head style, 0.180 inches head height, width between flats: 0.500 inches .

Manufacturer part number GYS5N53 for national stock number 5306011254135.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-125-4135.

  • MPN or Model

    GYS5N53

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.571 inches
  • Fastener Length
    4.015 inches
  • Head Style
    Hexagon
  • Head Height
    0.180 inches
  • Width Between Flats
    0.500 inches
  • Grip Diameter
    0.250 inches
  • Point Length
    0.050 inches
  • Point Style
    Flat
  • End Application
    Hu-25 main landing gear braking system
  • Thread Diameter
    0.154 inches
  • Grip Length
    0.339 inches
  • Thready Qty Per Inch (tpi)
    24
  • Point Chamfer Angle
    45.0 degrees
  • Color
    Black
  • Material
    Steel
  • Material Specification
    Mil-b-117 military specification single material response
  • Surface Treatment
    Nickel
  • Thread Series Designator
    Unjf
Close Tolerance Bolt

An externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.

Mechanic Bill explains Close Tolerance Hex Head Bolt

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NSN 5306011254135

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
GYS5N53 Meggitt Aircraft Braking Systems
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