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NSN 5306-01-021-8358

Close Tolerance Hex Head Bolt

About this product

Between 0.700 inches and 0.720 inches fastener length, hexagon head style, between 0.115 inches and 0.135 inches head height, width between flats: 0.438 inches .

Manufacturer part number A15D3550-1 for national stock number 5306010218358.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-021-8358.

  • MPN or Model

    A15D3550-1

  • 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 0.390 inches and 0.430 inches
  • Fastener Length
    Between 0.700 inches and 0.720 inches
  • Head Style
    Hexagon
  • Head Height
    Between 0.115 inches and 0.135 inches
  • Width Between Flats
    0.438 inches
  • Grip Diameter
    Between 0.2482 inches and 0.2492 inches
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 0.290 inches and 0.310 inches
  • Thready Qty Per Inch (tpi)
    28
  • Min. Tensile Strength (psi)
    150000 pounds per square inch
  • Surface Finish
    32.0 microinches grip
  • Material Specification
    Ams 5643 assn standard single material response
  • Surface Treatment
    Passivate
  • Surface Treatment Specification
    Bac5751 method 2, fscm 77272 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 5306010218358

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
A15D3550-1 The Boeing Company
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