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NSN 5306-00-177-5425

Close Tolerance Hex Head Bolt

About this product

Between 1.890 inches and 1.937 inches fastener length, hexagon head style, between 0.140 inches and 0.172 inches head height, width between flats: between 0.428 inches and 0.440 inches .

Manufacturer part number AN174C17 for national stock number 5306001775425.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-00-177-5425.

  • MPN or Model

    AN174C17

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • 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
    Between 0.436 inches and 0.515 inches
  • Fastener Length
    Between 1.890 inches and 1.937 inches
  • Head Style
    Hexagon
  • Head Height
    Between 0.140 inches and 0.172 inches
  • Width Between Flats
    Between 0.428 inches and 0.440 inches
  • Grip Diameter
    Between 0.2487 inches and 0.2492 inches
  • Shank Unthreaded Hole Diameter
    0.076 inches first hole and 0.086 inches first hole
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 1.422 inches and 1.454 inches
  • Thready Qty Per Inch (tpi)
    28
  • Min. Tensile Strength (psi)
    125000 pounds per square inch
  • Hardness Rating
    26.0 rockwell c and 32.0 rockwell c
  • Distance From Head Largest Bearing Surface To Shank Hole Center
    1.734 inches first hole and 1.766 inches first hole
  • Material
    Steel comp 431
  • Material Specification
    Mil-s-18732 military specification single material response
  • Surface Treatment
    Passivate
  • Thread Series Designator
    Unf
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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 5306001775425

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
AN174C17 Aeronautical Standards Group
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