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NSN 5306-00-639-2954

Bolt Flush Head

About this product

2.125 inches fastener length, bevel-conical head style, between 0.818 inches and 0.828 inches head diameter, head height: 0.500 inches .

Manufacturer part number MS20008H21 for national stock number 5306006392954.

Datasheet

  • Product description

    Internal Wrenching Bolt NSN 5306-00-639-2954.

  • MPN or Model

    MS20008H21

  • 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
    0.812 inches
  • Fastener Length
    2.125 inches
  • Head Style
    Bevel-conical
  • Head Diameter
    Between 0.818 inches and 0.828 inches
  • Head Height
    0.500 inches
  • Hole Diameter
    0.062 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
    36.0 rockwell c and 40.0 rockwell c
  • Hole Configuration Style
    Round longitudinal hole
  • Material
    Steel
  • Surface Treatment
    Cadmium and chromate
  • Surface Treatment Specification
    Qq-p-416, type 2 cl 2 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 5306006392954

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
MS20008H21 National Aerospace Standards
MS20008H21 Military Standards
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