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NSN 5306-00-803-6402

Close Tolerance Hex Head Bolt

About this product

1.812 inches fastener length, knurled no. 4 head style, 0.312 inches head diameter, head height: 0.250 inches .

Manufacturer part number 3817085-1 for national stock number 5306008036402.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-00-803-6402.

  • MPN or Model

    3817085-1

  • 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)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.316 inches and 0.336 inches
  • Fastener Length
    1.812 inches
  • Head Style
    Knurled no. 4
  • Head Diameter
    0.312 inches
  • Head Height
    0.250 inches
  • Grip Diameter
    Between 0.5145 inches and 0.5155 inches
  • Shank Unthreaded Hole Diameter
    0.104 inches first hole and 0.111 inches first hole
  • Thread Diameter
    0.500 inches
  • Grip Length
    Between 1.376 inches and 1.396 inches
  • Thready Qty Per Inch (tpi)
    20
  • Distance From Head Largest Bearing Surface To Shank Hole Center
    1.656 inches first hole
  • Surface Finish
    32.0 microinches grip
  • Material
    Steel comp 4140
  • Surface Treatment
    Cadmium
  • Surface Treatment Specification
    Qq-p-416 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 5306008036402

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
3817085-1 Boeing Company, The
5817083-501 Boeing Company, The
3817085-501 Boeing Company, The
5817083-501 Boeing Company, The
3817085-1 Boeing Company, The
Stock Check
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