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NSN 5306-01-249-4170

Hook Bolt

About this product

28 counterbore threads per inch, between 0.970 inches and 1.000 inches fastener length, double hexagon w/hole head style, head height: between 0.290 inches and 0.310 inches .

Manufacturer part number 39735 for national stock number 5306012494170.

Datasheet

  • Product description

    Internally Relieved Body Bolt NSN 5306-01-249-4170.

  • MPN or Model

    39735

  • 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
  • Threads Per Inch
    28 counterbore
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.460 inches and 0.510 inches
  • Fastener Length
    Between 0.970 inches and 1.000 inches
  • Head Style
    Double hexagon w/hole
  • Head Height
    Between 0.290 inches and 0.310 inches
  • Width Between Flats
    Between 0.306 inches and 0.315 inches
  • Extended Washer Diameter
    Between 0.428 inches and 0.438 inches
  • Extended Washer Thickness
    Between 0.059 inches and 0.079 inches
  • Concentric Hole Diameter
    0.213 inches
  • Internal Thread Length
    0.195 inches counterbore and 0.205 inches counterbore
  • Thread Diameter
    0.250 inches
  • Thread Series
    Unf counterbore
  • Thready Qty Per Inch (tpi)
    28
  • Thread Size
    0.250 inches counterbore
  • Internal Thread Class
    3b counterbore
  • 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 type 2 cl 3 federal specification single treatment response
  • Style Designator
    Counterbore threaded
  • Thread Series Designator
    Unf
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 5306012494170

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
39735 Joint Oil Analysis Program
39735 Commanding Officer
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