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NSN 5306-01-030-1764

Close Tolerance Hex Head Bolt

About this product

Between 2.675 inches and 2.722 inches fastener length, double hexagon head style, between 0.154 inches and 0.174 inches head height, width between flats: between 0.430 inches and 0.439 inches .

Manufacturer part number ST3M729-4D38 for national stock number 5306010301764.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-030-1764.

  • MPN or Model

    ST3M729-4D38

  • 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)
  • Unit Weight (Est.)
    0.1 lb
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.290 inches and 0.357 inches
  • Fastener Length
    Between 2.675 inches and 2.722 inches
  • Head Style
    Double hexagon
  • Head Height
    Between 0.154 inches and 0.174 inches
  • Width Between Flats
    Between 0.430 inches and 0.439 inches
  • Grip Diameter
    Between 0.2490 inches and 0.2495 inches
  • Shank Unthreaded Hole Diameter
    0.076 inches first hole and 0.081 inches first hole
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 2.365 inches and 2.385 inches
  • Thready Qty Per Inch (tpi)
    28
  • Distance From Head Largest Bearing Surface To Shank Hole Center
    2.547 inches first hole and 2.614 inches first hole
  • Material
    Steel comp xm-13
  • Material Specification
    Ams 5629 assn standard single material 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 5306010301764

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
ST3M729-4D38 Huck International, Inc.
ST3M729-4D38 Valley-todeco, Inc.
ST3M729-4D38 Sps Technologies, Llc
ST3M729-4D38 Sps Technologies, Llc
MB145-4D38 Hi-shear Corporation
ST3M729-4D38 Alcoa Global Fasteners, Inc.
MB145-4D38 Lisi Aerospace Canada Corp
ST3M729-4D38 Boeing Company, The
ST3M729-4D38 Hi-shear Corporation
ST3M729-4D38 Arconic Global Fasteners & Rings,
ST3M729-4D38 Heartland Precision Fasteners, Inc.
ST3M729-4D38 Fastener Innovation Technology, Inc.
ST3M729-4D38 Huck Intl Inc
ST3M729-4D38 Houston Precision Fasteners I, Lp
ST3M729-4D38 Sps Technologies, Llc
ST3M729-4D38 Sonic Industries Inc.
ST3M729-4D38 Reid Products Inc.
ST3M729-4D38 West Coast Aerospace Inc
ST3M729-4D38 Sps Technologies, Llc
Stock Check
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