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NSN 5306-01-263-8115

Bolt Flush Head

About this product

Between 3.485 inches and 3.515 inches fastener length, bevel-conical head style, between 0.818 inches and 0.828 inches head diameter, head height: between 0.490 inches and 0.510 inches .

Manufacturer part number MS20008H-43 for national stock number 5306012638115.

Datasheet

  • Product description

    Internal Wrenching Bolt NSN 5306-01-263-8115.

  • MPN or Model

    MS20008H-43

  • 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
    Between 0.788 inches and 0.841 inches
  • Fastener Length
    Between 3.485 inches and 3.515 inches
  • Head Style
    Bevel-conical
  • Head Diameter
    Between 0.818 inches and 0.828 inches
  • Head Height
    Between 0.490 inches and 0.510 inches
  • Hole Diameter
    Between 0.055 inches and 0.060 inches
  • Internal Drive Style
    Hexagon
  • Thread Diameter
    0.500 inches
  • Width Across Flats
    Between 0.375 inches and 0.378 inches
  • Hole Quantity
    4
  • Hole Type
    Drilled
  • Thready Qty Per Inch (tpi)
    20
  • Min. Tensile Strength (psi)
    160000 pounds per square inch
  • Hardness Rating
    34.0 rockwell c and 40.0 rockwell c
  • Hole Configuration Style
    Round internal hexagon
  • Surface Finish
    63.0 microinches bearing surface of head
  • Material
    Steel comp e4340 or steel comp 4140 or steel comp 8740 or steel comp 8735 or steel comp 6150
  • Surface Treatment
    Cadmium and chromate
  • Surface Treatment Specification
    Qq-p-416 ty2 cl2 federal specification single treatment response
  • Thread Series Designator
    Unf
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Internal Wrenching Bolt

An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It is designed with an internal socket or internal multiple spline for use with an internal driver. The head is beveled (conical) or cylindrical in shape. Items with cylindrical shaped heads must have an externally relieved body. A locking feature may be incorporated in the design of the head or threads. See also screw, cap, socket head. Excludes setscrew; screw, shoulder; bolt, shoulder; screw, externally relieved body; bolt, externally relieved body; and screw, machine.

Mechanic Bill explains Bolt Flush Head

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NSN 5306012638115

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
MS20008H-43 Military Standards
MS20008-43 Military Standards
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