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NSN 5306-01-520-8953

Close Tolerance Hex Head Bolt

About this product

1.1205 inches fastener length, pan head style, between 0.256 inches and 0.270 inches head diameter, head height: between 0.087 inches and 0.097 inches .

Manufacturer part number BACB30LK06-13 for national stock number 5306015208953.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-520-8953.

  • MPN or Model

    BACB30LK06-13

  • 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
    0.308 inches
  • Fastener Length
    1.1205 inches
  • Head Style
    Pan
  • Head Diameter
    Between 0.256 inches and 0.270 inches
  • Head Height
    Between 0.087 inches and 0.097 inches
  • Grip Diameter
    Between 0.1359 inches and 0.1365 inches
  • Shank Unthreaded Hole Diameter
    0.070 inches
  • Thread Diameter
    0.138 inches
  • Grip Length
    0.8125 inches
  • Thready Qty Per Inch (tpi)
    32
  • Distance From Head Largest Bearing Surface To Shank Hole Center
    1.728 inches first hole
  • Color
    Green threads
  • Material
    Stainless steel
  • Material Specification
    Ams5737 assn standard single material response
  • Surface Treatment
    Cadmium
  • Surface Treatment Specification
    Qq-p-416, type ii, class 2 federal specification single treatment 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 5306015208953

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
BACB30LK06-13 The Boeing Company
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