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NSN 5306-00-404-2653

Close Tolerance Hex Head Bolt

About this product

Between 0.511 inches and 0.541 inches fastener length, undercut hexagon head style, between 0.110 inches and 0.125 inches head height, width between flats: between 0.367 inches and 0.376 inches .

Manufacturer part number BACB30DM3C3 for national stock number 5306004042653.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-00-404-2653.

  • MPN or Model

    BACB30DM3C3

  • 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 0.308 inches and 0.368 inches
  • Fastener Length
    Between 0.511 inches and 0.541 inches
  • Head Style
    Undercut hexagon
  • Head Height
    Between 0.110 inches and 0.125 inches
  • Width Between Flats
    Between 0.367 inches and 0.376 inches
  • Grip Diameter
    Between 0.1890 inches and 0.1895 inches
  • Thread Diameter
    0.190 inches
  • Grip Length
    Between 0.173 inches and 0.203 inches
  • Thready Qty Per Inch (tpi)
    32
  • Surface Finish
    63.0 microinches top of head
  • Material
    Steel
  • Material Specification
    Bac-b30dn, fscm 81205 mfr ref single material 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 5306004042653

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
BACB30DM3C3 The Boeing Company
BACB30DM3-3 The Boeing Company
BACB30DM3C3 Sps Technologies, Llc
BACB30DM3C3 Valley-todeco, Inc.
BACB30DM3C3 Sps Technologies, Llc
BACB30DM3C3 Sps Technologies, Llc
BACB30DM3C3 Alcoa Global Fasteners, Inc.
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