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NSN 5306-01-205-8018

Close Tolerance Hex Head Bolt

About this product

Between 1.797 inches and 1.844 inches fastener length, double hexagon head style, between 0.200 inches and 0.220 inches head height, width between flats: between 0.553 inches and 0.564 inches .

Manufacturer part number 68485-6P29 for national stock number 5306012058018.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-205-8018.

  • MPN or Model

    68485-6P29

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.419 inches
  • Fastener Length
    Between 1.797 inches and 1.844 inches
  • Head Style
    Double hexagon
  • Head Height
    Between 0.200 inches and 0.220 inches
  • Width Between Flats
    Between 0.553 inches and 0.564 inches
  • Grip Diameter
    Between 0.3735 inches and 0.3745 inches
  • Shank Unthreaded Hole Diameter
    0.106 inches first hole and 0.116 inches first hole
  • Thread Diameter
    0.375 inches
  • Grip Length
    Between 1.383 inches and 1.403 inches
  • Thready Qty Per Inch (tpi)
    24
  • Min. Tensile Strength (psi)
    156000 pounds per square inch
  • Distance From Head Largest Bearing Surface To Shank Hole Center
    1.663 inches first hole and 1.695 inches first hole
  • Surface Finish
    32.0 microinches grip
  • Material
    Steel comp h11
  • Material Specification
    Ams 6487 assn standard single material response
  • Surface Treatment
    Cadmium and chromate and nickel
  • Surface Treatment Specification
    Ams 2416 assn standard all treatment responses
  • Supplementary Features
    Lub cetyl alcohol
  • Thread Series Designator
    Unjf
  • Specification Data
    98897-stsbg001 manufacturers specification control
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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 5306012058018

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
68485-6P29 Sps Technologies, Llc
68485-6P29 Sps Technologies, Llc
STSBS001A06D029 Lockheed Martin Corporation
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