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NSN 5306-01-338-4012

Close Tolerance Hex Head Bolt

About this product

Between 7.857 inches and 7.877 inches fastener length, crowned hexagon head style, between 0.147 inches and 0.157 inches head height, width between flats: between 1.427 inches and 1.440 inches .

Manufacturer part number MS27576-16-106 for national stock number 5306013384012.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-338-4012.

  • MPN or Model

    MS27576-16-106

  • 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.)
    0.8 lb
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 1.216 inches and 1.252 inches
  • Fastener Length
    Between 7.857 inches and 7.877 inches
  • Head Style
    Crowned hexagon
  • Head Height
    Between 0.147 inches and 0.157 inches
  • Width Between Flats
    Between 1.427 inches and 1.440 inches
  • Locking Feature
    Retainer fastener
  • Grip Diameter
    Between 0.9982 inches and 0.9991 inches
  • Shank Unthreaded Hole Diameter
    0.141 inches first hole and 0.151 inches first hole
  • Thread Diameter
    1.000 inches
  • Grip Length
    Between 6.625 inches and 6.641 inches
  • Features Provided
    Cotter pin
  • Thready Qty Per Inch (tpi)
    12
  • Min. Tensile Strength (psi)
    95000 pounds per square inch
  • Hardness Rating
    36.0 rockwell c fastener and 41.0 rockwell c fastener
  • Distance From Head Largest Bearing Surface To Shank Hole Center
    7.356 inches first hole and 7.361 inches first hole
  • Surface Finish
    63.0 microinches bearing surface of head63.0 microinches grip
  • Material
    Steel comp 630 locking feature or steel comp 631 locking feature or steel comp 440c locking featuresteel comp 631 spring or steel comp 302 springsteel comp e4340 fastener or steel comp 4140 fastener or steel comp 4130 fastener or steel comp 8740 fastener or steel comp 6150 fastener
  • Material Specification
    Ams 5643 assn standard 1st material response locking feature or ams 5644 assn standard 2nd material response locking feature or qq-s-763 federal specification 3rd material response locking featureams 5673 assn standard 1st material response spring or astm a580 assn standard 2nd material response spring
  • Surface Treatment
    Passivate locking featurepassivate stand-offcadmium fastener and chromate fastener
  • Surface Treatment Specification
    Qq-p-35 federal specification single treatment response locking featureqq-p-35 federal specification single treatment response stand-offqq-p-416 type 2 class 2 federal specification single treatment response fastener
  • 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 5306013384012

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
MS27576-16-106 National Aerospace Standards
MS27576-16-106 Military Standards
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