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NSN 5306-01-318-9243

Close Tolerance Hex Head Bolt

About this product

Chamferred 0.015-0.025 in. On allfour bottom edges of head;thread modified 0.1810-0.1870 in. Major dia.

Manufacturer part number 4074030 for national stock number 5306013189243.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-318-9243.

  • MPN or Model

    4074030

  • Schedule B
    7508.90.0000 (Other articles of nickel, nesoi (excluding cloth, grill & netting of nickel wire))
  • NMF (National Motor Freight)
    093486 - Bolts, Nuts Or Screws, NOI (sub 3)
  • Unit Weight (Est.)
    0.1 lb
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.425 inches
  • Fastener Length
    Between 1.240 inches and 1.260 inches
  • Head Style
    Tee no. 6
  • Head Height
    Between 0.085 inches and 0.095 inches
  • Head Length
    0.430 inches
  • Width Between Flats
    0.430 inches
  • Grip Diameter
    Between 0.1885 inches and 0.1890 inches
  • Shank Unthreaded Hole Diameter
    0.065 inches first hole and 0.072 inches first hole
  • End Application
    F100pw0229 engine/core mod
  • Thread Diameter
    0.190 inches
  • Grip Length
    Between 0.790 inches and 0.860 inches
  • Thready Qty Per Inch (tpi)
    32
  • Distance From Head Largest Bearing Surface To Shank Hole Center
    1.115 inches first hole
  • Surface Finish
    63.0 microinches grip
  • Chamfer Angle
    Between 40.0 degrees and 50.0 degrees
  • Material
    Nickel alloy
  • Material Specification
    Pwa96, cage 77445 mfr ref single material response
  • Thread Series Designator
    Unjf
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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 5306013189243

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
4074030 United Technologies Corporation
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