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NSN 5306-01-370-0072

Close Tolerance Hex Head Bolt

About this product

1.378 inches fastener length, dished hexagon head style, between 0.125 inches and 0.140 inches head height, width between flats: between 0.430 inches and 0.439 inches .

Manufacturer part number S4928913-4-17 for national stock number 5306013700072.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-370-0072.

  • MPN or Model

    S4928913-4-17

  • 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
    0.316 inches
  • Fastener Length
    1.378 inches
  • Head Style
    Dished hexagon
  • Head Height
    Between 0.125 inches and 0.140 inches
  • Width Between Flats
    Between 0.430 inches and 0.439 inches
  • Grip Diameter
    Between 0.2483 inches and 0.2492 inches
  • Shank Unthreaded Hole Diameter
    0.076 inches threads and 0.086 inches threads
  • Thread Diameter
    0.2500 inches
  • Grip Length
    1.062 inches
  • Thready Qty Per Inch (tpi)
    28
  • Min. Tensile Strength (psi)
    160000 pounds per square inch
  • Distance From Head Largest Bearing Surface To Shank Hole Center
    1.262 inches threads
  • Material
    Steel comp 4340 or steel comp 8740
  • Material Specification
    Mil-s-5000 military specification 1st material response or mil-s-6049 military specification 2nd material response or ams 6322 assn standard 2nd material response
  • Surface Treatment
    Cadmium and chromate
  • 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 5306013700072

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
S4928913-4-17 Arconic Global Fasteners & Rings,
S4928913-4-17 Sps Technologies, Llc
S4928913-4-17 Huck International, Inc.
S4928913-4-17 Sps Technologies, Llc
S4928913-4-17 Sps Technologies, Llc
S4928913-4-17 Boeing Company, The
S4928913-4-17 Mercury Aerospace Fasteners Inc
S4928913-4-17 Huck Intl Inc
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