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NSN 5306-01-626-9265

Close Tolerance Hex Head Bolt

About this product

1.8915 inches fastener length, double hexagon head style, between 0.200 inches and 0.220 inches head height, width between flats: between 0.553 inches and 0.564 inches .

Manufacturer part number BACB30LT6K23 for national stock number 5306016269265.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-626-9265.

  • MPN or Model

    BACB30LT6K23

  • 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
    0.454 inches
  • Fastener Length
    1.8915 inches
  • Head Style
    Double hexagon
  • Head Height
    Between 0.200 inches and 0.220 inches
  • Width Between Flats
    Between 0.553 inches and 0.564 inches
  • Grip Diameter
    Between 0.3735 inches and 0.3745 inches
  • Thread Diameter
    0.3750 inches
  • Grip Length
    Between 1.4225 inches and 1.4525 inches
  • Thready Qty Per Inch (tpi)
    24
  • Part Name Assigned By Controlling Agency
    Bolt, 12 point head
  • Material
    Stainless steel
  • Material Specification
    Ams5737 assn standard single material response
  • Surface Treatment
    Aluminum
  • Surface Treatment Specification
    Bms10-85 mfr ref 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 5306016269265

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
BACB30LT6K23 The Boeing Company
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