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NSN 5306-01-298-0640

Hook Bolt

About this product

Surface finish on shank and bearing surface of head 32.0 microinches.

Manufacturer part number MS21250-14044 for national stock number 5306012980640.

Datasheet

  • Product description

    Internally Relieved Body Bolt NSN 5306-01-298-0640.

  • MPN or Model

    MS21250-14044

  • 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.)
    0.2 lb
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 1.254 inches and 1.274 inches
  • Fastener Length
    4.014 inches
  • Head Style
    Double hexagon w/hole
  • Head Height
    0.808 inches
  • Width Between Flats
    0.9375 inches
  • Extended Washer Diameter
    Between 1.428 inches and 1.438 inches
  • Extended Washer Thickness
    0.198 inches
  • Concentric Hole Depth
    0.260 inches
  • Concentric Hole Diameter
    0.187 inches
  • Thread Diameter
    0.875 inches
  • Features Provided
    Casehardened
  • Thready Qty Per Inch (tpi)
    14
  • Min. Tensile Strength (psi)
    180000 pounds per square inch
  • Hardness Rating
    39.0 rockwell c and 43.0 rockwell c
  • Material
    Steel comp 4140 or steel comp e4340 or steel comp 8740 or steel comp 6150
  • Material Specification
    Mil-s-5626 military specification 1st material response or mil-s-5000 military specification 2nd material response or mil-s-6049 military specification 3rd material response or mil-s-8503 military specification 4th material response
  • Surface Treatment
    Cadmium and chromate
  • Surface Treatment Specification
    Qq-p-416 type 2 cl 3 federal specification single treatment response
  • Style Designator
    Concentric hole unthreaded
  • Thread Series Designator
    Unjf
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Internally Relieved Body Bolt

An externally threaded fastener whose external threaded portion is of one nominal diameter. It has a concentric hole along the longitudinal centerline which may extend a part or the full length of the bolt. The concentric hole along the centerline may be counterbored and/or internally threaded at the head end or the bolt end. The head is designed to be held or driven by an external and/or internal driver. For items having a hole(s) perpendicular to the axis which meet the concentric hole along the longitudinal centerline, see bolt, fluid passage.

Mechanic Bill explains Hook Bolt

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NSN 5306012980640

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
MS21250-14044 Military Standards
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