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NSN 5306-01-143-4089

Close Tolerance Hex Head Bolt

About this product

Retaining element in shank.

Manufacturer part number LB36-12-29 for national stock number 5306011434089.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-143-4089.

  • MPN or Model

    LB36-12-29

  • 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.)
    0.4 lb
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.729 inches and 0.780 inches
  • Fastener Length
    Between 2.832 inches and 2.852 inches
  • Head Style
    Hexagon
  • Head Height
    Between 0.344 inches and 0.359 inches
  • Width Between Flats
    Between 1.052 inches and 1.064 inches
  • Grip Diameter
    Between 0.7485 inches and 0.7490 inches
  • Shank Unthreaded Hole Diameter
    0.141 inches first hole and 0.151 inches first hole
  • Thread Diameter
    0.750 inches
  • Grip Length
    Between 1.812 inches and 1.828 inches
  • Thready Qty Per Inch (tpi)
    16
  • Distance From Head Largest Bearing Surface To Shank Hole Center
    2.688 inches first hole
  • Surface Finish
    63.0 microinches grip
  • Material
    Steel comp xm-13
  • Material Specification
    Ams 5629 assn standard single material response
  • Surface Treatment
    Passivate
  • 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 5306011434089

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
LB36-12-29 Hi-shear Corporation
ST3M764C12-29 Boeing Company, The
AS300-12-29 Avibank Mfg., Inc.
LB36-12-29 Lisi Aerospace Canada Corp
10115992 Nimikkeistokeskus Ncb Finland
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