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NSN 5306-01-283-1755

Close Tolerance Hex Head Bolt

About this product

Between 7.640 inches and 7.687 inches fastener length, hexagon head style, between 0.109 inches and 0.141 inches head height, width between flats: between 0.365 inches and 0.377 inches .

Manufacturer part number AN173H75A for national stock number 5306012831755.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-283-1755.

  • MPN or Model

    AN173H75A

  • 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 0.374 inches and 0.453 inches
  • Fastener Length
    Between 7.640 inches and 7.687 inches
  • Head Style
    Hexagon
  • Head Height
    Between 0.109 inches and 0.141 inches
  • Width Between Flats
    Between 0.365 inches and 0.377 inches
  • Hole Diameter
    Between 0.046 inches and 0.056 inches
  • Grip Diameter
    Between 0.1889 inches and 0.1894 inches
  • Thread Diameter
    0.190 inches
  • Grip Length
    Between 7.234 inches and 7.266 inches
  • Hole Quantity
    1
  • Hole Type
    Drilled
  • Thready Qty Per Inch (tpi)
    32
  • Min. Tensile Strength (psi)
    125000 pounds per square inch
  • Hardness Rating
    26.0 rockwell c and 32.0 rockwell c
  • Hole Configuration Style
    Hexagon flats
  • Surface Finish
    63.0 microinches grip
  • Material
    Steel comp 8740 or steel comp 8735 or steel comp 4140 or steel comp 4130
  • Material Specification
    Mil-s-6049 military specification 1st material response or mil-s-6098 military specification 2nd material response or mil-s-5626 military specification 3rd material response or mil-s-6758 military specification 4th material response
  • Surface Treatment
    Cadmium and chromate
  • Surface Treatment Specification
    Qq-p-416 type 2 cl 2 federal specification single treatment response
  • 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 5306012831755

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
AN173H75A Aeronautical Standards Group
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